Ken Oyanagi

Ken Oyanagi is a minor antagonist appearing in Part IV: Diamond is Unbreakable.

Personality
Ken's wish is to become an adult who is respected just as much as Rohan. He has no real knowledge of stands in the start but he quickly learns more as the match progress.

Synopsis
Ken fell off a telephone pole resulting in a hole in his left cheek. This hole was likely caused by the stand-creating Arrow that Yoshihiro Kira used to create new stand users in Morioh. Being a huge janken (Rock Paper Scissors) fan, he challenges famous mangaka Rohan Kishibe after running into him. Rohan, very annoyed by his presence, uses Heaven's Door to cheat and chase him away, but Ken appears again, and Rohan plays a game in the hopes that if Ken wins, he will leave him alone.

However, Ken's main intention is to win over Rohan's "mind power" by defeating him in janken, as he believes it would mean he would surpass him as a person as well.

Trivia

 * According to Heaven's Door, Ken reads Shounen Jump every week and is in 6th grade in his school.
 * Ken appears the cover of volume 40.
 * During the climax of his fight with Rohan Kishibe, Ken said "Good!", a clear reference to Daniel J. D'Arby.