Otto Apocalypse (from Honkai Impact 3rd) is obsessed with Kallen Kaslana, a long gone childhood friend. He lived for more than 500 years with his only goal being to revive Kallen no matter the cost. He has done many villainous acts for his goal, despite knowing Kallen would hate him for it. In his words, he is but a creature of sins and desires. He knows what's right but he spits on it. He craves wisdom, but only to fulfill his personal wishes. That person is none other than I, Otto Apocalypse.