DVD only Extras. Junna Tōno has a twin sister named Senna. He is an ordinary student at Sakurahama Private High School. However, in the past, a traffic accident deprived him of his parents and his memory. Junna survived the accident and since then, he lived only with his sister, though he's been looked after by his relatives. His present life with Senna at the same high school is so pleasant that he can forget his se...