Koichi Mugikari - JoJo's Bizarre Encyclopedia

Koichi Mugikari (麦刈 公一, Mugikari Koichi) is a primary ally featured in the Cool Shock B.T. series, as well as its one-shot pilot, B.T. "The Wicked Boy".

Koichi Hirose - JoJo's Bizarre Encyclopedia

Koichi Mugikari - JoJo's Bizarre Encyclopedia

Koichi Mugikari - JoJo's Bizarre Encyclopedia

Cool Shock Old B.T. - New One-Shot by Nisio Isin & Posuka Demizu

Koichi Hirose - JoJo's Bizarre Encyclopedia

Koichi Mugikari - JoJo's Bizarre Encyclopedia

Cool Shock Old B.T. is a Love Letter to Araki and JoJo's Bizarre Adventure

ScanShifters - MangaDex

Koichi Mugikari - JoJo's Bizarre Encyclopedia

JoJo's Bizarre Adventure: Diamond is Unbreakable: Heroes / Characters - TV Tropes

Koichi Mugikari - JoJo's Bizarre Encyclopedia