Tokimeki Memorial brings together the twelve young girls from Kirameki High School, but revolves around the main girl, Fujisaki Shiori. The story starts at the beginning of the third school year, which is the last year before the main character can choose a girl and date her at the graduation.

Eiko has repeated flashbacks from childhood. In that place where she is enveloped by a huge noise, a boy starts running and Eiko falls off a swing. Are they memories or dreams, or are they the present day, or do they belong to someone else? The sound expands. That’s really something huge.