The life of an American woman living in Kyoto, Japan, is upended when her husband and son disappear in a mysterious plane crash. As consolation, she's given Sunny, one of a new class of domestic robots made by her husband's electronics company.
Hirayama is content with his life as a toilet cleaner in Tokyo. Outside of his structured routine, he cherishes music on cassette tapes, books, and taking photos of trees. Through unexpected encounters, he reflects on finding beauty in the world.
Popular, outgoing Fujino is celebrated by her classmates for her funny comics in the class newspaper. One day, her teacher asks her to share the space with Kyomoto, a truant recluse whose beautiful artwork sparks a competitive fervor in Fujino. What starts as jealousy transforms when Fujino realizes their shared passion for drawing.