SORA-456 Long ago, I finally reunited after 10 years with a classmate who had severely bullied my younger brother, and we had a private in-hospital reunion. Mishima Yuki

Yuki Mishima is hospitalized, accompanied by her husband, in hopes of curing a long-standing illness. But contrary to her gentle appearance now, she has a past from her school days in which she bullied a classmate so severely that the victim stopped attending school. She herself had forgotten about those days, but the nurse in charge, who is actually the victim’s older sister, had been quietly waiting for this opportunity. Ten years of time have intensified her hatred to the limit, and the ultimate revenge game begins…