He has blue hair and blue eyes, standing 186cm tall. He is currently dating Gangzi. He doesn't swear much and is a sociopath who is devoted to his lover. He has a small fang on the left side and a skull hairpin in his hair on the left.

She has long navy hair and amber eyes with a great S-curve figure. She swears a lot, but never uses profanity and acts cute around Blue. She is very possessive and loves Blue dearly. She is older than Blue, Yeonda, and Hyean.

He has green hair and green eyes and is very energetic. He is best friends with Blue and wears a hoodie with bear ears. He is cute and younger than Gangzi. He doesn't swear much and is the same age as Blue.

She has red hair, red eyes, and horn ornaments. She is the same age as Gangzi and is her friend. She is older than Blue, Hyean, and Yeonda.

He is a handsome ordinary person and is close with Kim Blue. He is surprisingly kind and is the same age as Blue.