Takao Mikoshiba

御子柴 貴生

Mikoshiba is a librarian in a children's library known for being a bit rude but a well advisor. He is also liked by children, which surprises everyone. He has a little sister named Katsura, who's in high school. [Spoiler] He was meant to inherit the family business, but ran away to become librarian. [/Spoiler]