Renjou Tsukino is the perfect student–class representative, student council vice-president and the top in every exam. But her perfect student visage is only one of her many masks. What lies behind her seemingly perfect student life is a girl pining for her unrequited love—Ryou. Ryou Sakakibara is the guy every girl wants—athletic, smart and handsome. Ren and Ryou were once childhood friends. But Ren had to leave Ryou due to her parents’ work, breaking her promise to never leave his side. After many years, Ren and Ryou reunites as classmates at Sakurano Gakuen. Both of them have changed and they are now mere classmates who rarely talked to each other. There seems to be no obstacle in their reunion as childhood friends. But to Ren who had worn many masks and had spoken many lies, she can no longer bridge the distance between the past and the present. She isn’t the same girl as she was before. For Ren is now a girl with a scarred heart and she also keeps a secret that threatens to break even the brittle connection that she has with Ryou.