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…

Sousuke Aoyama is a college student who suffers painfully from the loss of his parents in a traffic accident. He meets Kozan Shinoda, a suibokuga (India-ink painting) artist, at an…

Kento Ohashi (Tatsuya Fujiwara) is a novice ion engine developer working on a team that is launching the unmanned Hayabusa spacecraft into outerspace. His father Isao (Tomokazu Miura) was the…