本片的主人公是上田唯士(岛田铁太饰),10岁,小学四年级。他是个普通的男孩,喜欢小动物。然而,这个“普通的男孩”恋爱了!他的心动对象是三宅心爱(瑠璃饰)——一位热衷环保的“环保少女”。为了接近心爱,唯士决定加入她热衷的环保活动。与此同时,班上的小小问题儿童桥本阳斗(味元耀大饰)也意外加入。就这样,三人开启了一场环保行动,然而事情的发展却远远超出了他们的想象…。Liza, Sonya and Yana have been friends since childhood and grew up in the same dacha. Usually a 25-year-old girl has already graduated from college, has work experience and several novels behind her. Some even manage to get married and have a child. But for Liza, Sonya and Yana, everything does not go according to plan. They don't yet know who they want to be and have not yet f...。