Story Arc's

Fallen Angel's attempt to steal Asia Argento's Balance Breaker -

Rating Game: Team Gremory vs Team Riser - A Rating Game match that took place between Team Gremory and Team Riser over Rias's enjoyment to Riser Phenex. The game had begun and it was agreed upon by Rias and Kiba Yuuto that Asia would stay by Rias at all times while Koneko, Akeno and Kiba would set off to the nearby areas of their Headquarters to create traps to lure their enemies into a zone which they controlled. Once the traps were set, Issei, Dillon and Kio along with Koneko would all set out and head directly to the enemies front lines while Kiba would await in the trees and Akeno would remain on standby on top of a building waiting for Issei, Kio, Dillon and Koneko to take control of the Gymnasium. Their plan was set into motion as the Issei along with everyone else began to scout the Gymnasium when they ran into Xuelan, Ile and Nel and Mira (Rook and Three Pawns). A battle took place that was over very quickly as Issei and Kio defeated Ille and Bel while Koneko and Dillon defeated Xuelan and Mira although they did not retire them, instead they raced outside of the building so Akeno could blow it up, the 4 Riser servants were retired shortly thereafter. Kiba eliminated Burent, Shuriya and Marion(3 Pawns) after they fell into his trap set by Akeno with her Illusion Magic. Riser's Queen (Yubelluna) was sent out as she retired Koneko and Rias was was about to sent out her Queen(Akeno) that was until Kio Hyoudou entered his outrage mode and began battling Yubelluna to the extent that he had her on the run. After witnessing this Akeno was sent back to protect Rias as she and Asia led their next plan of attack to sneak into Riser's headquarters to attack him by surprise. Meanwhile Issei and Dillon Hyoudou made their way over to Riser's base but were stopped by Kiba who joined them. The three of them were then surrounded by Riser's remaining pieces, Ni and Li (Pawns), Isabela (Rook), Karlamine and Siris (Knights), Ravel Phenex and Mihae (Bishops) who engaged them. Meanwhile Yubelluna was brought to her breaking point as she surprised Kio with a Phenex tear and began to deal significant damage to him as he became exhausted. Issei Hyoudou told Dillon to go on and join Rias, Asia and Akeno in their attempt to defeat Riser but he ambushed them and began battling them. Suddenly the screams of Kio Hyoudou could be heard as he was retired by Yubelluna who had bombarded him with her Fire Magic. She then appeared overhead and struck Kiba and Issei but only Kiba was retired as Issei managed to survive the attack. Dillon then became enraged as he transformed into his Subspecies Balance Breaker and annihilated all of Riser's forces leaving only Ravel and Yubelluna at his side. Yubelluna then tried to strike Dillon Hyoudou but Akeno saved him which caused him to become even more enraged as he began to attack Riser violently. Issei tried to stop him but was injured as Dillon entered his outrage mode and eventually forced Riser to retire but he continue to beat him which causes Sirzechs along with Sairaorg Bael to get involved as they entered the Rating Game field and forcefully stopped Dillon. The Black Dragon Emperor violently punched Sairaorg but he just smiled and knocked the latter out with 2 punches. Rias team was later disqualified for Dillon's actions but he along with Kio and Issei would travel to the Underworld to stop the engagement and defeated Riser but this time without violating the rules. This would also be the time Dillon met his future rival and future bestfriend Sairaorg Bael.

Holy Sword Project - A conflict that began when a rogue Fallen Angel Cadre known as Kokabiel stole 4 of the 7 Excalibur fragments and attacked Kuoh Academy along with a few other Fallen Angels that followed his lead. Kio Hyoudou would go crazy and enter a blind rage which would grant him the power to eventually kill Kokabiel but not without a fight as the White Dragon Emperor Vali Lucifer had appeard and tried to take Kokabiel to be imprisoned but was stopped by Dillon Hyoudou w

Battle with the Khaos Brigade - This event was a fierce battle between Rias Gremory's Peerage and the Hero Faction led by Cao Cao. The battle took place in Kyoto while a few members of the Gremory Peerage were on a class field trip. The daughter of the Youki faction attacked them for she had believed they were the ones who had suddenly kidnapped her mother. Come to find out it was actually the Hero Faction who had been behind the supposed kidnapping however, they only discovered such information after the Hero Faction ambushed them while they were touring Kyoto. Cao Cao introduced himself along with the humans who had accompanied him. Azazel tried to regroup everyone so that they could fend off the attack but they were no match for the sudden ambush. Cao Cao defeated Azazel in a clash of spears while everyone else managed to survive the attacks from the members of the Hero Faction. A member of the Vali Team appeared to give aid to Issei Hyoudou, she was none other than Le Fay Pendragon who was tasked by Vali to distract Cao Cao by summoning Gomagog. Cao Cao effortlessly defeated the latter and forced Le Fay to retreat but this gave Team DxD the chance to go on the attack which forced the retreat of the Hero Faction as Georg used his Dimension Lost to transport them away. Kuno later approached the team and apologized for attacking them and gave them vital information on the current status of her mother's whereabouts. The next night, both teams met again but this time everyone was prepared. The 5 main members of the Hero Faction appeared and seemed happy to finally be able to unleash their powers. They were Cao Cao (Leader), Siegfreed (Sub-leader), Georg, Jeanne and Heracles. Other members were Leonardo, Connla and some humans. Issei had previously dealt with Connla in a subway whilst protecting Kuno, he severely burned the latter's body before arriving at the center of the conflict. On team DxD, there was Issei Hyoudou, Kio Hyoudou, Dillon Hyoudou, Saji Genshirou, Xenovia Quarta, Kiba Yuuto, Asia Argento, Rossweisse, and Irina Shidou. Eventually the likes of Sun Wukong and one of the 5 Dragon Kings Yu-Long showed up to aid in the Hero Faction's defeat. Cao Cao faced off against Issei and Dillon Hyoudou while Rossweisse and Kio faced off against Heracles. Xenovia and Kiba squared off against Siegfreed while Irina faced off against Jeanne. And finally, Saji after transforming into his Dragon King form faced off against Yasaka who had been forced into her giant nine-tailed fox form, he was later given assistance by another Dragon King, Yu-Long. Due to the Hero Faction's plan to use Yasaka and her near limitless power thanks to Georg's spells and her connection the the spiritual power flowing through Kyoto, it was crucial for DxD to stop them or else their plan of summoning Great Red through a Dragon Gate would eventually bring about the destruction of Earth. Thankfully, Issei and Dillon with their combined strength managed to hold off Cao Cao but their comrades were not so lucky as they were all effortlessly defeated with Kio being an exception as he had managed to flee. Issei did manage to take out one of Cao Cao's eyes just before he and his faction attempted to retreat. Ultimately DxD emerged victorious but not without a price as Dillon Hyoudou had been stabbed with the Holy Spear which was very deadly to him being half devil. He was bed ridden for 3 entire days but he managed to survive the fatal wound thanks to Azazel and Michael's assistance.

Demonic Beast Riot - A massive conflict involving Team DxD who faced off against the remaining members of the Old Satan Faction as well as the Hero Faction and Hades Grim Reapers lead by Pluto. After the Hero Faction suffered a defeat thanks to the ORC in Kyoto, they felt they had a score to settle and so they made a deal with Hades to use his Grim Reapers as well as Samuel, a half Dragon half Fallen Angel hybrid who was cursed by God with blood that is capable of devouring the souls of almost any being alive. Following the victory of Team Gremory over Team Bael lead by Sairaorg Bael, everyone celebrated at the Hyoudou residence along with Ophis who had been sent by Vali after he discovered the Hero Faction's plot to steal her powers and use them for their own selfish desires. The ORC were ambushed by Cao Cao and Georg who summoned Samuel so that he could drain Ophis of her powers and after achieving their goal Cao Cao swapped locations with his subordinate Siegfried who was later killed by Kiba Yuuto. Shortly following the battle and after Vali was struck with Samuel's curse, Shalba Beelzebub appeared with Leonardo who was forced to unleash the full power of his balance breaker in which 12 battersnatch creatures formed along with 1 Jabberwocky that forced the most powerful peerage in the Underworld, the Lucifer Peerage to take action but they could not leave a scratch on the Jabberwocky as it had highly regenerative powers. Meanwhile Issei had managed to kill Shalba but now without suffering a fatal blow to Samuel's curse from an arrow. He died in Ophis arms shortly thereafter and was saved by Ddraig and Great Red who created him a new body made from his very flesh. He was later reborn and sent to the Underworld with Ophis by Great Red who exchanged glares with the Jabberwocky. He lent Issei his power which granted him his one time use of Super Gigantic Balance Breaker which allowed him to kill the giant creature. The events that followed were the deaths of Pluto who was compressed to death by Vali Lucifer who achieved a new form known as Emperio Juggernaut Overdrive. Cao Cao had defeated Azazel while the rest of the Hero Faction were slowly being defeated by the ORC, members from Team DxD and the the Vali Team. Cao Cao was then surrounded by Dillon Hyoudou's Peerage as they attempted to trap Cao Cao inside a barrier until their leader could arrive but they were unsuccessful as he easily overpowered them with his Holy Spear that was potent to all Devils. Eventually Sairaorg Bael, Vali Lucifer and Issei Hyoudou appeared and prevented Cao Cao from escaping. He asked them which one would face him as it wouldn't seem far to be challenged by 3 Longinus users as even he could not win such an intense battle. Issei Hyoudou eventually made it clear that he would face Cao Cao as he had a score to settle but before he could engage the latter his brother Dillon Hyoudou appeared and stated he would be the one to face Cao Cao to which Cao Cao happily accepted the challenge. The two engaged each other until eventually Dillon forced the latter to use his Truth Idea ability but Dillon Hyoudou's Longinus began to act funny and a bright white light emerged from his gauntlet which shut down the Holy Spears ability as Dillon forcefully summoned the spear into his hands and stabbed Cao Cao forcing him to submit but he was later saved by Georg who transported himself as well as Cao Cao away.

Evil Dragon War - A war that was waged between Team DxD and the newly formed faction known as Qlippoth. They were lead by Rizevim Livan Lucifer and the newly revived Evil Dragons such as Apophis and Aži Dahāka and their army of fake Scale Mails. Together they would lead an attack force greater than any previous threat combined, and to top it all off they had planned on unsealing the Apocalyptical beast known as Trihexa who is said to be the one that will bring the end to all life in the universe. The first major battle between both sides began after the unsealing of Trihexa when the Evil Dragons guided it to the Grigori territory and decimated their headquarters. They then proceed to lead it to the First Heaven in which it also decimated the lower-class of Angels who were caught off guard by the sudden attack. Shortly thereafter, the beast was sent to the Norse world where it left a trail of destruction that lasted for three days. The Gods and Valkyries of Asgard as well as various Gods from other mythologies aided in the endless battle. Eventually, Trihexa split itself into 7 separate bodies each with a core that continued to attack various factions as well as Europe and Japan. During the battles in Europe and Japan, a very quick but important meeting was held between Team DxD and all of those who were partaking in the battle. Dillon Hyoudou informed everyone that his time had come to fulfill his part in the prophecy and that he must travel into the Dimensional Gap along with Ophis and Lilith. Though hesitant everyone went along with his and Azazel's plan to transport each core into the Isolation Barrier Field where Dillon would unleash his full power at the cost of his life though he did not inform Azazel about his sacrifice, his father reluctantly went along with the plan. Issei Hyoudou began to battle Apophis in Japan while Vali Lucifer fought Aži Dahāka in Europe. Dillon Hyoudou sent his Peerage to both Vali Lucifer's and Issei Hyoudou's locations to give aid while he along with Ophis entered the Dimensional Gap. Dillon informed Ophis and Lilith that he fears the destruction that will unfold in the coming events is too great but at the same time, it's a "necessary evil". The three went in search of Great Red in the hopes of striking a deal with him. Thanks to his past experiences, Baloryx managed to telepathically communicate with Great Red, thus allowing the Dragon God to find Dillon, Lilith and Ophis. Dillon informed the latter that a beast known as Trihexa with power said to equal that of Great Red's and Ophis in her Prime had been released from it's prison and it was currently reeking havoc upon the world. He pleaded with Great Red to aid him in defeating such a mindless creature but Great Red refused and was about to leave but before he could do so, Ophis spoke to him and stated that she also initially refused to aid in the conflict but after she became friends with Dillon, Issei and Kio, she understood what it was like to have a purpose, what the meaning of life itself was and why she was born with such power she will never understand but she will die protecting those that she cares about; most of all her friends which she has never had in the many years she's been alive. After hearing her speech, Great Red asked a very important question. He asked Dillon why was he so willing to die for those who would not be able to do the same for him, Dillon smiled and answered with one word; "Love". Shortly thereafter, Dillon informed Great Red, Ophis and Lilith that he has no idea what will happen once they engage the Apocalyptical Beast however, if they didn't act soon then eventually the beast would come find all four of them regardless if they ignored it's destruction. During all of this, the Gods and mythological leaders of all the factions had managed to transport all 7 of the Trihexa cores into one location as the beast recombined back into it's original form. Dillon along with Great Red, Ophis and Lilith emerged out of the Dimensional Gap and arrived in Japan where they aided in the defeat of the Fake Scale Mail's and Apophis whom was sealed by Dillon into a Gem. Everyone was then transported to Europe where Aži Dahāka was ending his battle with Vali Lucifer, he was later sealed into a Gem. Once all of the battles was over and the Evil Dragons had been defeated, all of the members of Team DxD along with the Gods of every mythology, Dillon, Great Red, Lilith and Ophis arrived outside of the Isolation Field Barrier as it had finally been created around Trihexa who was still causing a massive rampage. Dillon told Great Red, Ophis and Lilith to go on ahead without him as he needed to absorb a massive amount of energy in order to fight with them. Before Dillon began to absorb his power he greeted his friends and loved ones for the last time, Akeno tried to stop him but he hesitantly used his Force Magic to hurl her back with tears streaming down his face as he knew his life was about to end but he didn't care as he wanted to protect those that he loved. Great Red and Trihexa met and had a very instensful stare down as they both roared and clashed with one another which caused a massive shockwave which shook the barrier. Ophis and Lilith began attacking it with their Magic and powerful Aura's while Great Red began biting, clawing and hurling huge waves of his aura along with his scorching dragon flames that managed to burn Trihexa but the beast just regenerated shortly after. They continued to fight for about 10 minutes until Dillon had finally taken in enough energy to transform into his Guardian of Eternity armor which caused a massive explosion. He floated into the Barrier field and began battling the beast along with Great Red, Ophis and Lilith and using his Cosmic energy abilities, he managed to stop Trihexa from regenerating and after about 2 hours the 4 Dragon Gods had finally managed to defeat the beast. Dillon used a forbidden magic spell with chains that were unbreakable my any means unless removed by the one who put them their, Dillon transported Trihexa into his personal Dimension where he then was combined with the other Dragon Gods into one Supernatural-Being. He used a sleeping spell to put the beast back into it's slumber and began

Evil Dragon War - A war that was waged between Team DxD and the newly formed faction known as Qlippoth. They were lead by Rizevim Livan Lucifer and the newly revived Evil Dragons such as Apophis and Aži Dahāka and their army of fake Scale Mails. Together they would lead an attack force greater than any previous threat combined, and to top it all off they had planned on unsealing the Apocalyptical beast known as Trihexa who is said to be the one that will bring the end to all life in the universe. The first major battle between both sides began after the unsealing of Trihexa when the Evil Dragons guided it to the Grigori territory and decimated their headquarters. They then proceed to lead it to the First Heaven in which it also decimated the lower-class of Angels who were caught off guard by the sudden attack. Shortly thereafter, the beast was sent to the Norse world where it left a trail of destruction that lasted for three days. The Gods and Valkyries of Asgard as well as various Gods from other mythologies aided in the endless battle. Eventually, Trihexa split itself into 7 separate bodies, each with a core that continued to attack the Greek, Hindu, Celtic and Egyptian mythologies as well as the mountainous area of Europe and the coastal region of Japan. The seventh core took a different route, it somehow managed to gain entry into the Dimensional Gap. After the defeats of both Apophis and Aži Dahāka, Dillon had their souls sealed into special Gems that he would later use to create new Sacred Gears for his Peerage. The armies of Fake Scale Mails were also shortly defeated and it was suggested by Azazel that all of the factions would need to transport each core back to one location to force the beast to recombine back into it's original form. There was only one flaw with this plan, the seventh core was lost in the Dimensional Gap and finding it was literally impossible. Issei Hyoudou suggested that he along with Kio and Vali Lucifer lead an attack group to lure the remaning core out from the Dimensional Gap while Dillon goes into the Dimensional Gap alone in an attempt to find Great Red in the hopes of convincing him to aid in the battle. After the agreement was made, Ophis and Lilith suddenly appeared and tagged along for unknown reasons. Once inside the group used their aura's to call forth the Dragon God and within a few minutes he appeared before them. They discussed the events that were taking place and pleaded with Great Red for him to give aid but he refused stating this was the worlds problem and they must suffer the consequences of their selfish choices. He opened a portal and was preparing to leave when he was stopped by Ophis who informed the latter that she also initially refused to aid in the conflict but after she became friends with Dillon, Issei and Kio, she understood what it was like to have a purpose. She values the few friendships she has developed and she refuses to allow such a mindless beast to take away her happiness. After hearing her speech, Great Red asked a very important question. He asked Dillon why was he so willing to die for those who would not be able to do the same for him, Dillon smiled and answered with one word; "Love". Shortly thereafter, Dillon informed Great Red that Trihexa is equally as destructive as the latter but his highly regenerative powers make him far more dangerous. He informed everyone present that regardless if they choose to ignore the beast's destruction, eventually it would come for them. After hearing Dillon's speech, Great Red shifted his gaze to Ophis and Lilith. He pondered over weather or not they along with Dillon were trustworthy and eventually he gave his verdict. He agreed to get involved but only if he is attacked by the beast, until such time he will remain in the Dimensional Gap but before he could finish his statement, Dillon Hyoudou interrupted by stating that the beast was already here. Ophis and Lilith began to look around as they felt a very dark presence unlike anything they had ever felt. Great Red suddenly did a complete 180 as the 4 of them glared into the abyss only to see Issei, Kio and Vali along with a small army running from the final core of Trihexa. Dillon made one final comment directed towards the 3 Dragon Gods stating that this isn't a matter of life or death, it's about saving the universe from completely collapsing on itself. He then yelled at Great Red asking him why does he exist if his intent is to just fly around in the Dimensional Gap forever to which Great Red responded with he has no knowledge of why he was created or how he came to be. A few moments passed, Ophis along with Lilith and Team DxD forced the beast out of the Dimensional Gap against it's will to stay and battle Great Red while the True Dragon stayed behind and just watched as the portal closed. Trihexa's cores were all then transported into the Isolation Barrier Field where it recombined into it's original form.

Alliance of Hell -

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Ragnarok -

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Mt Olympus and the twelve titans -'''

 Battle with Heroes from Alternate Dimensions - After the events of Ragnarok unfolded, somehow a dimensional rift opened up thus creating portals to other worlds that were previously unknown to those in DxD and vice versa. These "other worlds" contained beings that were very similar to DxD's but they also were completely different at the same time. These other worlds came into contact with one another, some became allies while others tried to conquer for their own Evil desires and then they're were those who remained neutral.

Such worlds consisted of:

Anos Voldigoad and his Demon Race/Heroes such as Hero Kanon

Basara Toujou and his Demon Race/Heroes

Akashic Records of Bastard Magic and their world of Magic

Maoyuu Mauo Yuusha (Archenemy & Hero) and their world of Demons/Humans

The Devil is a Part-Timer (Hataraku Maou-Sama!) and their realm of Satan and the Hero's

Then we have the worlds with powers or environments which are completely different from DxD's.

Licht Bach and his world of Baron's along with Counts that signify a person's chosen power.

The 4 Cardinal Heroes and their Magical system

Conflict with MxM world and it's Monsters lead me King Ghidorah

War of the Worlds with ExE Futuristic Battle foreseen by Dillon involving every mythology known along with the previous foes from the alternate dimensions would be fighting an unknown enemy. Apparently they call them selves ExE, led by Melvazoa. Dillon also foresaw the death of Great Red who was effortlessly beheaded by Regalzeva who has strength far surpassing that of both Great Red and Ophis in her prime. - Dillon had obtained the ability to look into the future for a short time and he was able to notifty everyone of the coming threat that would arrive in approximately 30 years.