The parallel and indirectly connected stories of various couples in the all-girl Seiran Academy. Each volume focuses on a different one. It follows model student Shiramine Ayaka, who one day sees her top spot stolen by the lazy genius Kurosawa Yurine… and accidentally makes Yurine fall in love with her, much to her dismay; Ayaka's shy cousin Mizuki and her quirky girlfriend Moe, who met and bonded through running; or Yukina and Towako, the two members of the gardening club who forcefully recruit Yurine, among others. Often comedic, sometimes bittersweet, always light.