"Dyeing" seasons and "heart"──. Asuka Koji is a first-year student at the prestigious rural girls' junior high school, Private Roumei Academy, wearing a sailor uniform. The seasons change, and autumn deepens. A fresh start. The sailor uniform transitions from mid-season wear to winter attire♪ As the upcoming cultural festival approaches, various feelings and intentions intertwine──... vividly dyed in Volume 12♪♪