Akane Inoue and Tomoka Kase went to the same high school, where Inoue was a year ahead. Both were involved in track and field—Inoue as a member of the team and Kase as a junior to her. Their closeness during those years sparked rumors among classmates that they were dating, though neither confirmed it at the time.
After graduation, Kase followed Inoue to Tokyo, where they both ended up attending the same university. Inoue also shares an alma mater connection with Yui Yamada from their high school days.
Content compiled by AnimeList.moe from publicly available sources.
