高中生葵和母亲过着节俭的生活。有一天，在放学回家的路上葵看到萌子住在一座洋馆里，他被萌子所吸引，开始在院外偷看她。当他继续窥视，他看到了萌子充实的生活和他自己贫乏的生活。但隔壁的草坪真的是蓝色的吗？ 　　Aoi, a high school student, lives a frugal life with her mother. One day, He is attracted to Moeko, who he sees at her Western-style building on his way home from school, and begins her peeping. But as he continued to peep, he saw her fulfilling life and his own underprivileged l...