Midori, a woman with green genitals, and the three men who love her lead a strange and peaceful life together. However, when Midori returns from a trip alone, the balance suddenly begins to unravel, and the drama begins to run toward its tragic conclusion. The dry, stoic tone pervades the entire film, the realistic performances of the four actors, and the frightening tension of the images. The power of this film can be seen in its 140 minutes.

Tatsuru and Shinichiro’s relationship shifts from casual to complicated as love and emotions blur the lines between their work and personal lives.

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.

Kyoka, a university student, receives an old brown envelope in which she finds a photograph of her classmate, Sachiko. With this, she also finds a mysterious message saying "Help me". One day, while at a café, Kyoka overhears that "somebody had been spirited away by a man in a black suit". It was at that moment that Kyoka recalled the moment that Sachiko had suddenly disappeared in the mountains right in front of her very own eyes.