The world viewed throught the eyes of someone suffering from depression, is different from those people in the light.

A girl who lives in Japan. Story begins when girl is a 10 years old 5th grader and she is supposed to meet her childhood friend Sora, at their secret spot. Both kids meet and talk and right when she's about to tell Sora something important, it starts raining Sora runs off saying see you later tell me tomorrow. And the kids don't see eachother for 5 years when the girl sudenly appears again what will happen?