# Release of Japanese drama Ani Imouto

> Live situation record from CLSTR: https://clstr.news/situations/release-of-japanese-drama-ani-imouto
> Updated: 2026-10-17T00:06:10.000Z. Sources: 9. Developments: 3.

Details have emerged regarding the upcoming TV Asahi suspense drama ‘Ani Imouto’, scheduled to premiere on October 17, 2026. 

Singer-songwriter Uru has been selected to perform the theme song, ‘Sore nanoni’, a medium rock ballad she wrote and composed to reflect the characters’ complex emotions. The digital single is slated for release on October 21, with a CD release scheduled for December 9 and a music video arriving on October 23.

The series stars Nana Eikura and Eiji Akaso in dual lead roles. The narrative follows two sets of siblings navigating forbidden love and suspenseful circumstances. One arc focuses on Nao Haruki (Eikura), a doctor facing burnout, and Shuji Sonoda (Akaso), a shipyard worker supporting his terminally ill sister, Eri (Yu Miyazaki). Their connection evolves from a misunderstanding into a forbidden romance. A second arc involves Nao’s brother, Ryosuke (Tatsuya Kimura), whose past issues resurface after 18 years.

The drama is divided into two segments: a ‘Regional Chapter’ covering the characters' initial meeting and separation, and a ‘Tokyo Chapter’ set three years later, where the characters deal with secrets and past suspicions. Prior to the premiere, solo visuals designed by art director Shintaro Kira were released to convey the “mysterious and heavy psychological states” of the characters.

## Timeline

### 2026-10-17: Japanese drama ‘Ani Imouto’ premieres with Uru theme song

The Japanese drama ‘Ani Imouto’, starring Nana Eikura and Eiji Akaso, has premiered, featuring the theme song ‘Sore Nanoni’ by Uru.

6 sources. https://clstr.news/cluster/japanese-drama-ani-imouto-premieres-with-uru-theme-song

### 2026-09-26: Nana Eikura and Eiji Akaso lead upcoming suspense drama ‘Ani Imouto’

Solo visuals have been released for the upcoming TV Asahi suspense drama ‘Ani Imouto’, starring Nana Eikura and Eiji Akaso, which premieres on October 17, 2026.

3 sources. https://clstr.news/cluster/nana-eikura-and-eiji-akaso-lead-upcoming-suspense-drama-ani-imouto

### 2026-09-17: Uru to perform theme song for drama ‘Ani Imouto’

Uru will perform the theme song ‘Sore nanoni’ for the October 2026 TV Asahi drama ‘Ani Imouto’, starring Nana Eikura and Eiji Akaso. The single will be released digitally on October 21.

2 sources. https://clstr.news/cluster/uru-to-perform-theme-song-for-drama-ani-imouto

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Cite as: Release of Japanese drama Ani Imouto. CLSTR, https://clstr.news/situations/release-of-japanese-drama-ani-imouto