Living in a world full of cute, pretty, beautiful, hot, and sexy monster girls has its pros. Along with cons of course. Izuku Midoriya was just your average guy. Unnatural green hair, wonderful personality, oblivious to any hint a female that is attracted to him drops. Just a cinnamon roll. Well what happens when a mysterious harpy crashes though his window? Well he cares for it of course! He's just gonna have to get used to the other monsters that appear in his life. I've seen mha cross overs with DBZ, Naruto, Miss Kobayashi's Dragon Maid, Rwby, ect. So I thought, "Why not the Monster Girl Encyclopedia?" so here we are!