Kase-san and...

Since childhood, Yui Yamada has been reserved and introverted, limiting her social interactions to her handful of pals and accomplishing her role as the "Plant Appointee" by decorating the school with greenery. However, one day, her trajectory collides with that of Tomoka Kase, the star of the track and field team. While Kase is gregarious and sporty, Yamada has never engaged in athletics or joined any club. But, in spite of their dissimilarities, the two gradually forge a bond. As they explore the intricacies of their relationship and of each other, will their emotions blossom into a romance?