Kai is a handsome young man with messy, vanilla blond hair, chestnut brown eyes and he is quite tall, being 5'7".

Kai is seen a lot with a lemon soda bottle in his hand to fend off bullies, since he's generally an aloof character, being distant and cool, not engaging or interacting with his 'fan-girls'. The only exceptions are his friends & Uka Ishimori, Kai's classmate, who he shows the greatest affection towards.

Not much is known about Kai's early life apart from the fact that his father left him in the winter of his third year of middle school and his mother died when he was around 3 years old. He has since stayed at his Uncle's apartment in a building his father owns.

(Source: Honey Lemon Soda Wiki)