Kanon S01 E12 A Mark of a Dream

Yuichi remembers what happened to Ayu, seven years ago, as well as the thing she was searching for—a little angel doll. Nayuki, Kaori, and Jun help him unearth the doll. Akiko is hit by a car in a blizzard. Ayu, in order to let Yuichi use the doll, asks him to let her go as a final wish.