Kanon (2006)

As a young child, Aizawa Yuuichi had often visited his cousin in the city; however, something drastic happened to keep him away for seven long years. Now, Yuuichi returns, his memories of those days are simply gone. Settling into the wintry town, Yuuichi comes across 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... Changing schools is something the 17-year-old Aizawa Yuuichi is accustomed to, due to his parent's profession, and with their recent venture to Africa, he is returning to his aunt's home after seven years. The time that has passed since his last visit has faded his memories of the people he once knew, and the ties that bonded them to him, including his cousin Minase Nayuki.