「私が“生きる希望”をあげる」架橋明日は家族を事故で失い、引き取られた親戚のもとでも辛い日々を送っていた。全てに絶望した少年は、中学校を卒業したその日、ビルの屋上から身を投げる。しかし、少年はそこで1羽の天使と出会う――!?
“I will give you the will to live.” Tomorrow lost his family in an accident, and was living with a relative who took him in and had a difficult time. The boy, despairing of everything, throws himself off the roof of a building on the day he graduates from junior high school. However, the boy meets an angel there!?