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From the autumn anime series Tomodachi no Imouto ga Ore ni dake Uzai, the synopsis and exciting pre-cut scenes for the upcoming second episode, titled “His Long-Lost Cousin Is Only Cold Towards Him,” have been unveiled. This highly anticipated episode is set to broadcast starting Saturday, October 11, 2025.
ImoUza, or Tomodachi no Imouto ga Ore ni dake Uzai, is based on the light novel series by Mikawa Ghost, published under GA Bunko, which also boasts a popular manga adaptation. This “agony-inducing, flirtatious, and annoying youth romantic comedy” revolves around a charmingly bothersome girl who constantly gravitates towards our protagonist, whether he asks for it or not!
The TV anime adaptation is brought to life by animation studio BLADE, with Koga Kazuomi directing the series. Fans will be delighted to know that the main cast from the drama CD version reprise their roles: Ishiya Haruki as Ooboshi Akiteru, Suzushiro Sayumi as Kohinata Iroha, Kusunoki Tomori as Tsukinomori Mashiro, Saitou Souma as Kohinata Otsuma, and Hanazawa Kana as Kageishi Sumire.
The story follows high school student Ooboshi Akiteru, who dismisses all aspects of youth romance as inefficient, believing in no-frills relationships and no need for a girlfriend. Yet, for some reason, Kohinata Iroha, the younger sister of his best friend, is always hanging out at his house. Despite being a popular, refined honor student at school, Iroha is inexplicably bothersome to Akiteru, constantly invading his space, monopolizing his bed, and even teasing him with sudden, suggestive moves. One day, Akiteru, already overwhelmed by this high-energy, annoyingly cute girl, encounters the “salty” type of girl, Mashiro. This encounter drastically changes the daily lives of Akiteru, Iroha, and their companions.
Episode 2: “His Long-Lost Cousin Is Only Cold Towards Him” Synopsis

Mashiro has arrived at Kouzai High School!

Mashiro’s bombshell announcement throws Akiteru’s class into utter chaos.

And if that wasn’t enough, Akiteru finds himself summoned by Kageishi Sumire, the notoriously sharp-tongued teacher feared by all, known as the “Poisonous Queen”—what could she want?

The second episode of the autumn anime Tomodachi no Imouto ga Ore ni dake Uzai, “His Long-Lost Cousin Is Only Cold Towards Him,” is scheduled to air sequentially starting Saturday, October 11, at 25:30 (effectively Sunday, 1:30 AM JST) on TV Asahi-affiliated 24 national networks within the “NUMAnimation” programming block, BS11, and AT-X.
Tomodachi no Imouto ga Ore ni dake Uzai Series Overview
Broadcast and Streaming Information
Broadcasting and streaming begins in October 2025 on TV Asahi-affiliated 24 national networks “NUMAnimation” block, BS11, and AT-X!
- TV Asahi-affiliated 24 national networks “NUMAnimation” block: Every Saturday from October 4, 25:30 (effectively Sunday, 1:30 AM JST)
- BS11: Every Sunday from October 5, 24:30 (effectively Monday, 0:30 AM JST)
- AT-X: Every Monday from October 6, 22:00 (10:00 PM JST)
- Repeat Broadcasts: Every Wednesday 10:00 AM JST / Every Friday 4:00 PM JST
Available for unlimited streaming ahead of others on ABEMA, d Anime Store, U-NEXT, and Anime Houdai!
- Streaming starts every Saturday from October 4, 26:00 (effectively Sunday, 2:00 AM JST)
Other streaming sites will also begin distribution sequentially!
*Broadcast and streaming dates/times are subject to change.
Staff
| Role | Name |
|---|---|
| Original Work | Mikawa Ghost (GA Bunko/SB Creative) |
| Original Character Design | Tomari |
| Director | Koga Kazuomi |
| Series Composition/Script | Machida Touko |
| Character Design | Satou Katsuyuki |
| Visual Director | Ozawa Kazunori |
| Prop Design | Recommendation |
| Art Setting | Ishihara Erina |
| Art Director | Arimoto Hisae |
| Color Design | Funahashi Mika (J.C.STAFF) |
| 3D Director | Hayashi Akio |
| 2D Works | Yumeta Company |
| Photography Director | Kanou Atsushi |
| Offline Editing | Maki Nobuyuki (Tabac) |
| Sound Director | Gou Fumiyuki |
| Casting | Tomari Ippei |
| Sound Production | Jinnan Studio |
| Music | Tanaka Tsugumi, Sawada Kaho, Sakuma Kanade, Nakamura Hanae |
| Music Production | Nichion |
| Animation Production | BLADE |
Cast
| Character | Voice Actor |
|---|---|
| Ooboshi Akiteru | Ishiya Haruki |
| Kohinata Iroha | Suzushiro Sayumi |
| Tsukinomori Mashiro | Kusunoki Tomori |
| Kohinata Otsuma | Saitou Souma |
| Kageishi Sumire | Hanazawa Kana |
Opening and Ending Themes
- Opening Theme: Akami Karubi – “Uzawa Kawakute Nani ga Warui!” (Polydor Records)
- Ending Theme: Kohana Lamu – “Hoshi no Kodou” (avex trax)
(C) Mikawa Ghost・SB Creative/”ImoUza” Production Committee
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