Based on the hit yuri game! Mako and Shiori are childhood best friends trying to repair a rift in their relationship... or possibly turn it into something more. Meanwhile, fellow student Hase Chiharu joins the Quiz Club to become closer to Natsuki and Rika, a power couple she adores. Tokino, another club member, can't take her eyes off their beautiful upper classmates either, and as Chiharu and Tokino observe the couple together, their own sweet relationship begins.