Class Reunion - Yesterday Once More: vol. 1: ep. 2
All the ex-members of the Tennis club at Sakura Junior High gather together at the class reunion party on New Years Eve. They're in their twenties now, and Mizuho is excited to finally get to see Tatsuya again, her long-time legendary love. During the class reunion, they plan a ski trip, their plan is to stay at Mizuho's mother's lodge in the hot spring resort area. Unfortunately, however, in the midst of their stay, Mizuho's mother is taken ill. Instead of having fun with her friends, Mizuho takes on the chores that are usually done by her mother. Although Mizuho insisted that her friends go and have some fun skiing, Tatsuya comes to lend a helping hand. This act of kindness gives Mizuho hope that, perhaps, Tatsuya loves her too.