Kanon

Yuuichi Aizawa returns after seven years to a snowbound northern town to live with his cousin Nayuki and her mother. Most of his memories of the place have faded, but as he meets a string of unusual girls, fragments of a forgotten childhood begin to return. Each encounter carries a small miracle and a hidden sorrow. Kanon was Key's first visual novel and helped define the tearjerker genre known as nakige.