Hakuchu (白昼) is one of the characters that has yet to appear in anything.
Hakuchu has fair skin, black hair, and eyes. He wears a gakuran uniform which consists of a black coat with mandarin collar, five golden/yellow buttons worn over a white shirt, black trousers and black dress shoes.
Hakuchu is described as being kind and quiet, along with being a yandere.
Not much is known about his past.
Up to this day, Hakuchu has only appeared in some of Deep-Sea Prisoner's illustrations.
Hakanai is Hakuchu's love interest.
- "Hakuchu" means "Daylight / Daytime."