Shouma Toriashi

About

Toriashi Shouma is an old friend of Yoshino's. He was abandoned by his biological father in middle school, and became an orphan. He was then adopted by Yoshino's grandfather Somei Renji. Currently he's a university student.

He is very quiet but very talkative when with Yoshino.

(Source: Raise wa Tanin ga Ii Wiki)