Haruki Yamauchi/Relationships

Ken Sudō
Ken is one of Haruki's friends in D-Class and they are often seen hanging out. Part of the 3 Idiots of D-Class along with Haruki Yamauchi and Ike Kanji.

Kanji Ike
Kanji is one of Haruki's friends in D-Class and they are often seen hanging out. Part of the 3 Idiots of D-Class along with Haruki Yamauchi and Ken Sudō.