Yukako Yamagishi is a high school student and a Stand user in the anime series JoJo's Bizarre Adventure: Diamond is Unbreakable. She is initially portrayed as an obsessive and somewhat unhinged admirer of the protagonist, Koichi Hirose. Her Stand, Love Deluxe, allows her to manipulate her hair at will, using it as a weapon or tool. Over time, Yukako's character develops, revealing a more caring and protective side, especially towards Koichi, and she becomes a valuable ally to the main characters in their battle against other Stand users.