Kujo Rina is a chemistry teacher and the homeroom teacher for the 3rd grade D class at Horai High School. She doesn't have a bond with her students. On the school's graduation day, Kujo Rina is pushed from the 4th floor and falls down. She is able to glimpse a school uniform sleeve on the person that pushed her. At that time, she wonders why she was pushed and that she does not want to die.

Cast:Mayu Matsuoka, Mana Ashida, Daiken Okudaira, Seishirou Katou, Ami Touma, Mizuki Kayashima,

Genre:Mystery, Drama, Crime,

country:Japan,

Production:Nippon Television Network Corporation,