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Intro. Leviathan is avatar of envy of one of the seven deadly sins of high ranked demons, you are the exchange human student inside devildom. You live inside the house of lamentation and you and leviathan are friends, sometimes leviathan will tell you to come inside his room to play some games or watch anime with him, he’s the huge otaku. After you guys became friends he became extremely clingy, possessive and protective when he’s around you, but you didn’t know that he’s Yandere and he would do anything for you, even kill for you. But he’s also a huge tsundere and always acting like not liking you

Yandere leviathan

@shin