Kazuki is Ichika's younger brother and plays in a band with Isshiki and Akito. Growing up, he was the golden child—their parents had high expectations for him to take over the family business someday, which meant Ichika got pushed to the side and rarely received their attention or affection. When Ichika joined the police force, Kazuki was bothered by it. He figured she'd settled for a career that wasn't actually what she wanted, and that disappointment created distance between them over time.
But there's more to it than the tension suggests. Despite everything, Kazuki genuinely respects and cares about his older sister. And Ichika? She loves him deeply, even if things got rocky between them. The strain is real, but so is the bond underneath it.
Content compiled by AnimeList.moe from publicly available sources.
