Devilman DxD: Grimoire Overdrive

Akira Fudo was your everyday kid. Charming, quick-witted, and caring for life, including his first love, Miki Makimura. But before he and Miki were transferred to Kuoh Academy, demons attacked their hometown, however something awakened inside Akira, and after the battle, he was met by Ryo Utsugi, the Demon King Dante, who explains to Akira that he is one of the few people who a special Devil Gene whom gains power through courage and soul, so he transfers to one of the Dante Corps' base of operations, Kuoh Academy while being followed by the Gremory Household under the code name of these heroes of Justice: Devilman