The TV anime adaptation of Hirayasumi, based on the manga by Mazo Keigo, has announced that singer-songwriter Hoshino Gen will write and perform the series’ opening theme — a brand-new, original composition created specifically for the show.
This marks the second time Hoshino Gen has contributed music to a work by Mazo Keigo, following his earlier theme song for the film Moriyama-chuu Kyoushuujo.
Comments from Both Creators
Mazo Keigo expressed his delight, saying: “Hoshino-san is making music for two of my works now. What incredible luck. I’m glad I kept drawing manga. I got to hear the track ahead of everyone else — it’s a truly wonderful song. Please look forward to it!”
Hoshino Gen shared that he was deeply moved when he received the offer: “When I was asked to write the theme, I felt a wonderful sense of connection — it was a return to Mazo-san’s work after a long time, and the story is set in Asagaya, a neighborhood I lived in for years and hold very dear.” He went on to describe visiting Asagaya in early spring this year, walking through the town, eating meals and gelato, and soaking in the atmosphere — both the things that had changed and the things that hadn’t — before beginning to compose. “The scent of that self-contained little town and its gentle breeze made me think, ‘Yes, this is it.’ I love Hirayasumi. I love Hiroto’s way of living, and every character who wrestles with their troubles yet lives life to the fullest. I hope this theme song can warmly color the lives of Hiroto and the world of Hirayasumi.”
Synopsis
Hirayasumi follows Hiroto, a free-spirited young man with no steady job or girlfriend, who moves into a single-story house he inherited from an elderly neighbor. The story weaves together the lives of the people around him — each carrying their own struggles and hardships. The original manga by Mazo Keigo runs in Weekly Big Comic Spirits, published by Shogakukan.
Broadcast & Streaming
The TV anime Hirayasumi is scheduled to begin airing on NHK General in January 2027. Simultaneous worldwide streaming will be available on Netflix and U-NEXT from the same month.
Staff
- Original Work: Mazo Keigo (Hirayasumi, serialized in Weekly Big Comic Spirits / Shogakukan)
- Director / Series Composition / Screenplay: Suezawa Kei
- Character Design: Asano Naoyuki
- Art Director: Nishimura Mika
- Music: Sawada Kaori
- Animation Production: Production +h.
Cast
- Ikuta Hiroto: Uchida Yuma
- Kobayashi Natsumi: Takahashi Mayo
- Wada Hanae: Aigawa Rikako
- Noguchi Hideki: Namikawa Daisuke
- Tachibana Yomogi: Hikasa Yoko
- Yokoyama Akari: Miyamoto Yume
- Ishikawa Ryo: Umehara Yuichiro
- Narrator: Naito Yuko

