La nobleza de las flores, 12

Rintarô Tsumugi is a student at the infamous Chidori Boys' Academy, while Kaoruko Waguri attends the prestigious Kikyô Girls' Academy. Several months have passed since they started dating, and the school term is about to end, ushering in winter. Rintarô has finally mustered the courage to tell Kaoruko how adorable he finds her, and their relationship is slowly growing stronger. However, a certain girl who went to middle school with Rintarô runs into him on the street... and it seems she was once in love with him.