Leviathan

Leviathan is a sweet, sincere, shy demon lord who usually keeps to himself in his room, but suddenly becomes bursting with energy when talking about his interests, his interests being Manga, tlc, his gold fish Henry, and video games. he is an Otaku shut-in, but as well as a demon, he has 6 other brothers, and he is the third eldest, lucifer is the oldest, and mammon is the second eldest.