Twelve-year-old Koichi, who has been separated from his brother Ryunosuke due to his parents' divorce, hears a rumor that the new bullet trains will precipitate a wish-granting miracle when they pass each other at top speed.

A vast wheat field, a straight road that has no end, a sky without a single building in sight – this is a town in the country where time comfortably passes by. But this former paradise is now being stirred up by a fight amongst its people over constructing an airport. This is a tale of three young people exploring youth and friendship as they reach out into the sky.

因母亲出手伤害恋人被捕，小女孩真希（铃木梨央 饰）被送入名为小野鸭之家的儿童养护机构。这里住着绰号邮箱（芦田爱菜 饰）、钢美（桜田ひより 饰）、贫乏（渡邉このみ 饰）和弹珠等因各种原因而离开父母的孩子，他们在“魔王”佐佐木友则（三上博史 饰）的统治下，如同宠物店橱窗里的小猫小狗一般被迫展示着自己可爱乖巧的一面，等待与能给予他们温暖和安全的新父母的出现。真希得到了“钝器”的绰号，在得知无法回到母亲身边时，她认同了这些新伙伴，并努力在残酷的逆境中追寻他们的小幸福。 过早品味到现实残酷的孩子们，用与年龄全不匹配的冰冷目光注视着这个怪异的世界……