Sarayashiki Hinoki

Hinoki is part of the Tokyo Group and is Karin's older brother. He is currently searching for his younger sister and investigating the Naka No Hito Genome kidnappings.

Background: He's the older brother of Sarayashiki Karin. From Karin's story, he's a genius who can learn things quickly but can also easily get bored of them. He stopped college and left the Sarayashiki household to start his own detective agency.