年下の先輩 (Toshishita no Senpai)

Argumento

The 25 year old Nanasawa has always had one sided feelings for her high school senpai Seto-san, when one day she travels back in time 10 years!! And there she finds Seto-senpai, in her 2nd year of high school. In order to date the girl she loves, Nanasawa begins her "redo lifestyle"! And thus starts a time travel x yuri ero comedy!!