NOTE: RealityDesu aka Game4Fans Has Moved to ChenCubed

Yuichi Aizawa, the main protagonist, had visited the city where the story takes place seven years prior to the story's beginning. Seven years ago Yuichi came to this city during his Summer Vacation and made certain promises with a few girls. However he has no memory of what happened. But his memory does slowly recover.

In the beginning Yuichi is very detached from the city and its people. When he returns to the city, he decides to live with his cousin, Nayuki Minase, and her mother, Akiko (just like 7 years ago). Yuichi is not aware at first, but three other girls which he had forgotten are familiar with him or have some memory about him.

Throughout the story, as he learns about the supernatural undertones of the town, Yuichi is reminded of each girl and the events of seven years ago in the city covered in snow. And slowly memories come pouring out of his already confused mind.