A minor antagonist featured in the fourth part of JoJo's Bizarre Adventure, Diamond is Unbreakable, specifically in the "The Nijimura Brothers" story arc. Keicho is Okuyasu's older brother. He is the first in Morioh to possess the Bow and Arrow and liberally creates Stand users in hopes one of them can kill his monstrous father. Keicho himself is a Stand User and his Stand is the miniature army, Bad Company.

Spoiler

After his fight with Josuke Higashikata, he dies from being electrically fried by Akira Otoishi's stand, Red Hot Chili Pepper