Kurosaki Karin is a person born into the family of Kurosaki Isshin and Kurosaki Masaki. She is the younger twin sister of Yuzu and the younger sister of Ichigo. Karin lives in Karakura and helps the family at the Kurosaki Clinic, performing the duties of a nurse when necessary. She studies at middle school and outwardly looks like an ordinary girl, but from early childhood she has clear spiritual perception. Karin is able to see pluses, Hollows, and Shinigami as distinctly as her older brother. Despite this, for a long time she claims that she does not believe in spirits, believing that if you do not believe in them, then they seem not to exist. After the death of her mother, Karin decided that she would not cry, so as not to burden the family with her worries. Because of this, her character became firmer and more reserved compared to the gentle Yuzu. Karin is practical, blunt, and often shows willfulness, especially in relation to her father, whom she can kick if she considers his behavior foolish. At the same time, she is caring and attentive to those close to her, especially to her brother and sister. When Ichigo loses his Shinigami powers, Karin's spiritual abilities become stronger, and she begins to buy from Urahara herself means of protection against spirits and Hollows. For some time she participates in the "Karakura Superheroes" under the name Karakura Red. Karin knows how to defeat weak Hollows with a strong ball strike, which she calls a "deadly strike in Karin style." Over the years, she remains a human, continuing to live in Karakura and caring for her family.