Koi x Mitsu: Promise in the Land of Sweets

One day, Chihiro Kiryu catches sight of a notebook belonging to popular classmate Saki Yaene.

Saki notices him looking and accidentally reveals that her confident social image is partly an act. She decides that helping Chihiro is now her responsibility.

Saki takes over the snack appreciation club, previously occupied only by Chihiro, and transforms it into a social club for discussing romance. Futaba Kinuori, his playful model friend, and Shizuku Chiba, his game loving and mysterious cousin, also join the group to investigate the secret of a small but satisfying love.

The four begin a lively series of romantic negotiations filled with disagreements, sweets, and unexpected connections.