Ayako has autism, and every child in the class mocks her except for Yuri, the only girl who shows her any kindness. Deeply appreciating this, Ayako gives Yuri a gift: a beaded bracelet. Later, as the school prepares for the summer cultural festival, Ayako's present inspires Yuri with an idea for a decoration on one of the school's exterior walls—a giant picture made of ropes strung with empty cans of various colors. All the children, including Ayako, then collect empty cans from all over the city and begin creating the picture. However, the day before the festival is scheduled to open, a typhoon hits the city, threatening to ruin the children's hard work.