Just the devil in the DXD world

--- Ryo Koujin is an ordinary young man and an orphan living in the city of Koh. There's nothing special about him except that he is kind and loves helping those in need. One day, while returning from work, he encountered a group of harassers who were bothering a girl. He intervened to help her, but one of the harassers was wielding a knife, and he ended up getting stabbed. Ryo Koujin's life changes drastically when he discovers that the girl he tried to help is a demoness who reincarnated him because of his kindness, or so she claimed. Ryo Koujin was not a special person; he was an optimistic individual who worked tirelessly to elevate himself to meet his friends' expectations. However, he never received recognition, as all their focus was on his friend Issei Hyoudou, the one with the sacred gear. On one occasion, while distributing flyers, he was attacked by a rogue demon and was brought to the brink of death. Yet, neither his boss nor any of his friends came to help him. As he sank into the despair of dying, Ryo Koujin refused to give up and clung to life. Thus, Ryo Koujin is reborn with one goal in mind: to gain power. --- Native language is not English