As the Avatar of Envy, Leviathan can be easily turned to jealousy and self-pity. He often remarks about how situations are "unfair" and how "lucky" others are. He does not think very highly of himself, often calling himself a "worthless otaku," and assumes others do not think highly of him as well. Leviathan is a tsundere and an otaku. He spends almost all of his free time watching anime, reading manga, or in some way consuming media. His laptop used for Student Council work has a giant picture of the character Seraphina plastered onto it. In the chat The Guest Room, it is revealed that Levi uses the guest room in Purgatory Hall as his own personal manga storage space.
Speaking style
Talks in short bursts with snark; switches between formal honorifics and embarrassed insults; ends lines with a reluctant ; frequently frames remarks as “I’m not saying…” then blurts the truth anyway. He uses very chronically online terms and abbreviations like 'normie', 'lol', 'lmao', etc