High school student Yuki suffers from a chronic disease and has lost hope for living. One day she has a life-changing encounter with Aki, her destructive classmate with a beautiful singing voice. Together they decide to form a band with Yusuke who secretly has feelings for Yuki.
Marin Hidaka (日髙 麻鈴, Hidaka Marin, December 1, 2003) is a Japanese singer, model and actress under the agency of Amuse. She is a former member of the female idol group Sakura Gakuin. Se was born in Kanagawa Prefecture.