Naoki

Basics
Naoki is the main villain of ImA. Calls himself the 'King of Bees', even though, as Jean said, "You don't even have any bees!" Naoki also has a 'sign' he paints everywhere. Hates Jean.

Personality
Naoki is evil, or at least evilish. He is also ridiculously pretentious and the things he says can be very far-fetched, with his motivations not always making sense. He also seems to be creative and have a vivid imagination. He is easier to understand after episode 17, where you hear his and Jean's backstory.

Relationships
Naoki is Jean's older brother, though the two do not share much of a sibling bond. He hates her for a pretty good reason, and they have some sort of sibling feud or rivalry. Chance used to work for him and be his best friend, but he left when he realized Naoki had bad intentions. At some point Naoki hurt Washa, and Jean helped the latter.