Mion Okai

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.

Ultraseven. Even after half a century has passed since its initial broadcasting, his story is still etched into people's memories. The story that connects the present as the future of 55 years ago, will be depicted as an 'IF story' that "may have existed" as an episode of the series at the time of its broadcast in 1967, and tell the story of "how it happened."