Global K-pop group TOMORROW X TOGETHER (TXT) has been confirmed to provide the theme song for the upcoming Japanese film Kill My Tears, Okiharu-kun (沖晴くんの涙を殺して). The new track, “Silence,” was written specifically for the movie, which marks actress Alice Hirose’s first solo lead film role in eight years. The film opens nationwide in Japan on October 2, 2026, with a poster visual, teaser trailer, and full cast now revealed.
Table of Contents
- Film Basics
- TOMORROW X TOGETHER’s Original Theme Song “Silence”
- Insert Song: Shuntaro Tanikawa x Sekaikan Ozaki
- Story Synopsis
- Cast and Comments
- Hiroshima Early Release and Behind the Scenes
- FAQ
Film Basics
The film is based on the novel Okiharu-kun no Namida wo Koroshite (沖晴くんの涙を殺して, published by Futabasha) by author Mio Nukaga, who debuted in 2015 after winning both the Matsumoto Seicho Prize and the Shogakukan Bunko Novel Prize, and is also known for the wind-band novel Kaze ni Kou and the source material for the TV drama series Tenshoku no Maou-sama. The film is directed by Hitoshi Yazaki, with a screenplay by Masa Asanishi.
TOMORROW X TOGETHER’s Original Theme Song “Silence”
The theme song for the film is “Silence,” a new track by TOMORROW X TOGETHER written specifically for this project. The official announcement encourages fans to “pay attention to the song written especially for this film.” The credit reads: TOMORROW X TOGETHER “Silence” (ⓟ 2026 BIGHIT MUSIC).
Set on Japan’s Seto Inland Sea, the film follows the bond between a terminally ill music teacher and a mysterious high schooler who has lost his emotions. Further details on the song’s streaming or single release have not yet been announced — check official TXT channels for updates.
Insert Song: Shuntaro Tanikawa x Sekaikan Ozaki
In addition to the theme song, the film features an insert song based on the poem “Ikiru” (生きる, “To Live”) by renowned poet Shuntaro Tanikawa. The poem was set to music by Sekaikan Ozaki of the band Creepy Hip (クリープハイプ), with arrangement by DNA GAINZ, reinforcing the film’s central themes of life, death, and emotion.
Story Synopsis
Kyoka Odoriba (Alice Hirose) is a music teacher diagnosed with terminal breast cancer and given one year to live. Choosing not to pursue treatment, she returns to her hometown on an island in Japan’s Seto Inland Sea. Assigned to lead her old school’s choir club, she meets Okiharu (Daisei Kido), a mysterious high schooler who always smiles but is nicknamed “the Grim Reaper” by his classmates.
When Okiharu laughingly tells her he lost his family in a tsunami, Kyoka asks why he’s smiling. He explains that when he was swept away by the tsunami, he made a deal with Death itself — trading away every emotion except “joy,” including disgust, anger, sorrow, and fear — in exchange for survival. That’s why he feels nothing. But after a certain incident, one of his lost emotions begins to resurface, and an unusual daily life begins as Kyoka, with little time left, and Okiharu, without most of his emotions, slowly rediscover feeling together.
Cast and Comments
Alice Hirose as Kyoka Odoriba
This marks Hirose’s first solo lead role in a film since 2018’s Mikocchaken, playing a terminally ill music teacher who returns to her hometown island.
Daisei Kido as Okiharu Shizukawa
Kido rose to prominence playing the young adult version of protagonist Harumichi (opposite Takeru Sato) in the Netflix series First Love, and has since appeared in the film Mobuko’s Love and dramas Draft King: Border Line (WOWOW) and Ichijigen no Sashiki (YTV/NTV). Reflecting on the role, he commented: “Playing Okiharu, who only has access to the emotion of ‘joy,’ was a truly challenging experience.”
Hiroshima Early Release and Behind the Scenes
Set along the Seto Inland Sea, the film will get an early release in Hiroshima Prefecture on September 18, 2026, ahead of its October 2 nationwide opening. Large-scale location shooting took place across Hiroshima from June 23 to July 22, 2025, with the sea depicted in the poster visual serving as the meeting place between Kyoka and Okiharu in the story.
FAQ
Q. When does the film open?
A. It opens early in Hiroshima Prefecture on September 18, 2026, followed by a nationwide release on October 2, 2026.
Q. What is the theme song?
A. “Silence,” a new song written by TOMORROW X TOGETHER specifically for the film.
Q. Is the film based on a book?
A. Yes, it is based on the novel Okiharu-kun no Namida wo Koroshite by Mio Nukaga (Futabasha).
Summary
TOMORROW X TOGETHER’s original song “Silence” headlines the theme song for Kill My Tears, Okiharu-kun, Alice Hirose’s first solo lead film in eight years, opening nationwide in Japan on October 2, 2026. With an insert song based on Shuntaro Tanikawa’s poem “Ikiru” set to music by Sekaikan Ozaki, and a strong supporting cast led by Daisei Kido, the film is one to watch. Check official channels for further updates.
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*Release dates, cast, and song details are current as of publication. Please check official sources for the latest information.
Source: eigajoho.com
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