A young boy named Takeshi steals an origami crane from his friend Nobu. To Takeshi's surprise the crane begins talking to him and offers to take him and his friends to an amusement park in space where children from many planets play. While riding an attraction designed to test the children's courage, Akiko is sucked into a black hole, leaving Takeshi and his friends to save her.

Student Tako is inexorably drawn toward Sao despite class rumors that she has appeared in a porno movie.

Akira is a lonely middle school boy, ignored by his classmates and bullied by his teacher. He falls in love with the image of a girl on a coffee advertising poster and names her Lunn. Through his "friendship" with Lunn, he gradually finds the strength to pursue his own dreams.

A lonely kid who lives in the countryside meets a strange boy who has a ragged umbrella over his head and there is always rain pouring over him. The rain boy is dazzled by the other kid's boots and offers three wishes in exchange for them.