When Yuki's classmate suddenly dies, rumors begin to spread about her death and the relationships between Yuki and her classmates are disrupted amidst grief and forced normalcy.

Yuka is on her way from a company party when she sees a young man running through a shopping street carrying a pillow. White feathers dance around him, and he leaves like an angel. Later, she encounters the young man again. His name is Satotaro, and he seems to have escaped from the hospital. He innocently takes Yuka, saying, "I have somewhere to go. A mysterious escape of a city-weary woman and a lonely young man begins.