During his childhood, Aizawa Yuuichi frequently visited his cousin in the city; however, a drastic event occurred that kept him away for seven long years. Now, Yuuichi has returned, but his memories of those days are simply gone. As he settles into the wintry town, Yuuichi encounters several young girls, all of whom are connected to his past. As he befriends them and continues to interact with them, the long-forgotten memories from his childhood begin to resurface...