Kimihiro Watanuki can see spirits and other assorted supernatural creatures, which is quite a bothersome ability he strongly dislikes. On the way home one day, while plagued by some spirits, he is inexplicably compelled to enter a strange house. There, he encounters Yuuko, a mysterious woman who claims to be able to rid him of the ability to see and attract the troublesome creatures—for a price. She demands that he work at her "store" that grants wishes to people, and thus begins Watanuki's adventures through weird and wonderful events.

小学生小晴与未婚妈妈维达两个人快乐地住在热带雨林里，过着简单而欢乐的生活。一天，酒醉夜归的维达带回来一个美丽的小女孩，她叫阿布。本以为将更加快乐的生活，却在第二天开始了翻天覆地的改变。小晴发现，昨晚的阿布完全是伪装出来的。实际上，阿布不仅脾气古怪，爱捉弄小晴，并且还有一个什么都能吞噬的胃。而小晴从未谋面的爸爸，似乎也要来到这个热带雨林。充满爆笑与不可思议事件人物的热带雨林，因为阿布的到来，而变得与众不同起来。