Chinu Kawakubo

Chinu Kawakubo is a student at Rikka Gakuen High School and a rising star in women's water polo, frequently drawing attention from the media spotlight. Having crossed paths with protagonist Minato Shimizu during their middle school years, she holds knowledge of the arrogant side of Minato that existed before his memory loss—a past he himself no longer recalls. Throughout the story, Chinu serves as a pivotal supporting figure whose interactions with Minato gradually push him to confront who he truly is, ultimately playing a decisive role in guiding him back to the world of competitive water polo.