2 Works in Hyoudou Issei/Yasaka
Issei dreams to be the harem king and he intends to achieve it. Instead of dying, he takes control of his own life and shows the supernatural world that he is the true alpha male. Darker, still kind, IsseixGrayfiaxIrinaxMassive Harem. Also on Adult fanfiction.
After rescuing Yasaka, Issei is given good advice and a reward to match. Not for the ideologically sensitive and readers focused on kid/family friendly content only.