Brook

Motoi Yazaki

矢崎 基
Motoi Yazaki is a politician who appears to be corrupt. He was friends with Makoto's parents and Takahito Komagusu while they were students in high school, and he entered the abandoned hospital with them. Makoto tries to ask him about his father, but he is shown to be shocked upon knowing his identity, refusing to answer any of his questions. (Source: Wikipedia, edited)