Finding His Fate

Izuku Midoriya (Deku) wishes to be an adventurer but after being adopted by the former king as his son Shoto Todoroki was crowned after his father's death by a demon mountain lion Dabi, things get messy as Todoroki might not have a blood heir to his throne. So he decided to prepare Deku in case he has to take over but when Deku refuses being a heir he ran away until he finds an old warlock who made a cake which contains a spell that turns Todoroki into a mountain lion. Now Deku has to fix his every mistake he made and keep the kingdom from falling as he tries to break the spell.