Fics like Monster Heroes vs Alien Villains

Izuku has no idea what had happen to him. One minute, he was confessing his love to the girl of his dreams and the next thing he knew, he has suddenly turned into some kind of werewolf boy and sent away to a prison for other monsters only to be let out to fight against a big alien invasion. Oh, and he has also gotten himself a Monster size harem while being renamed Deku Werehog.

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