DXD: The Villainous Devil Signs-in into the Mash-up Anime World

After transmigrating into the world of High School DxD, Lucien finds himself reborn as a devil noble.



Though his bloodline is impure, tainted with traces of succubus ancestry, and his only companion is an Agumon that has been with him since childhood, fate grants him an unexpected status—heir to the Leviathan lineage, with a beautiful fiancée.



However, as everyone knows, having a powerful fiancée almost guarantees a broken engagement.



Just as Sona arrives to call off their engagement, Lucien awakens the Villain Sign-in System. Completing villainous sign-in tasks will grant him powerful rewards.



[Ding! The host has intercepted the Red Dragon Emperor ahead of time, reward: Perfect Fusion with the Boosted Gear!]

[Ding! The host has stolen Irisviel and Tohsaka Aoi, reward: Authority of Minotaur, the Bull of Heaven!]

[Ding! The host has conquered three devil princesses—Seekvaira, Rias, and Sona. Reward: True Demon Lord Status!]

[Ding! The host has claimed the Underworld Queen, Grayfia, reward: One-time Time Travel Ability!]



Lucien: Is this… the rise of a devil noble?



(Main world: High School DxD, with crossovers into Fate/Zero, Campione!, Strike the Blood, Frieren: Beyond Journey's End, DanMachi, and Problem Children are Coming from Another World, Aren't They?)