Anime “Kaijuu 8-gou”: Reno and Iharu Tail Hoshina, Who Seems Unusual…? Special Episode Preview Cuts
Ahead of the highly anticipated Season 2 of the summer anime Kaijuu 8-gou, the synopsis and preview cuts for the special episode “Hoshina no Kyuujitsu” have been released. This special episode is set to broadcast on terrestrial TV and stream worldwide in real-time on X (formerly Twitter) starting July 5th, 2025.

About Kaijuu 8-gou
Kaijuu 8-gou is a thrilling kaijuu battle action manga by Matsumoto Naoya, serialized in Shueisha’s manga app Shounen Jump+ since July 2020. With 15 volumes currently published (including digital editions), the series boasts a cumulative domestic circulation exceeding 18 million copies.

The story is set in a world where giant kaijuu constantly threaten the populace. Hibino Kafka, a man who works for a company specializing in cleaning up kaijuu remains, once dreamed of joining the Nihon Boueitai (Japan Self-Defense Force) to fight these creatures. Just as he starts chasing this dream again, a mysterious small kaijuu transforms him into a being with immense power – a kaijuu himself. Dubbed “Kaijuu 8-gou” and pursued by the entire nation, Kafka refuses to give up on his dream of becoming a Defense Force member and continues to confront kaijuu disasters.
The Anime Adaptation

The TV anime adaptation of Kaijuu 8-gou features animation production by Production I.G and kaijuu design & works by Sutajio Kuraa. Season 1 aired from April 13, 2024, on the TV Tokyo network and other channels, and was also streamed worldwide in real-time on X, generating immense excitement across the globe. With the broadcast and streaming of Season 2 scheduled to begin on July 19th, the series continues to capture significant attention.
Introducing “Hoshina no Kyuujitsu”
“Hoshina no Kyuujitsu” is a special episode that received a wide theatrical release in over 30 countries and regions worldwide starting March 28th. It garnered significant positive feedback, having been screened simultaneously with the Season 1 compilation film.
Synopsis: “Hoshina no Kyuujitsu”

A holiday – a brief moment of peace for Defense Force members… Ichikawa Reno, having forgotten how to enjoy a day off after his rigorous training regime, senses an unusual aura emanating from Hoshina Soushirou, who is also off duty.

Together with Furuhashi Iharu, Reno decides to embark on a tailing operation, but the situation takes an unexpected turn…
Broadcast and Streaming Information
The Kaijuu 8-gou special episode “Hoshina no Kyuujitsu” will air on the TV Tokyo network from 23:00 JST on Saturday, July 5th, and will also be streamed worldwide in real-time on X. Following the TV broadcast, it will sequentially become available on various streaming platforms from 23:30 JST onwards (Note: Start times may vary depending on the service).
Season 2 Broadcast/Streaming:
- Terrestrial Broadcast: TV Tokyo network and others starting July 5th (Saturday) at 23:00 JST (Note: July 5th will be “Hoshina no Kyuujitsu”, July 12th a pre-broadcast special, and Season 2 begins July 19th). Additional stations including BS TV Tokyo, Nagasaki Broadcasting, BSN Niigata Broadcasting, Shizuoka Broadcasting, Akita Broadcasting, AT-X, Miyagi Television Broadcasting, and Chugoku Broadcasting will air the series starting on various dates (See original text for specific dates and times). Note that availability of “Hoshina no Kyuujitsu” and the pre-broadcast special varies by station. Please check each station’s website for details.
- Streaming: Worldwide real-time streaming on X every Saturday from 23:00 JST starting July 5th. Available sequentially on various streaming platforms from 23:30 JST after broadcast.
Staff
| Original Work | Matsumoto Naoya (Serialized in Shueisha’s Shounen Jump+) |
| Director | Miya Shigeyuki |
| Series Composition / Script | Kido Yuuichirou |
| Character Design / Chief Animation Director | Nishio Tetsuya |
| Kaijuu Design | Maeda Masahiro |
| Art Director | Kimura Shinji |
| Color Design | Hirose Izumi |
| 3D Director | Niigaki Hayato |
| Director of Photography | Arai Eiji |
| Editing | Hida Aya |
| Sound Director | Gou Bunyuuki |
| Music | Bandou Yuuta |
| Kaijuu Design & Works | Sutajio Kuraa |
| Animation Production | Production I.G |
| Opening Theme | AURORA「You Can’t Run From Yourself」 |
Cast
| Hibino Kafka / Kaijuu 8-gou | Fukunishi Katsuya |
| Ashiro Mina | Seto Asami |
| Ichikawa Reno | Katou Wataru |
| Shinomiya Kikoru | Fairouz Ai |
| Hoshina Soushirou | Kawanishi Kengo |
| Furuhashi Iharu | Shin Yuuki |
| Izumo Haruichi | Kawamoto Keisuke |
| Kaguragi Aoi | Takeuchi Shunsuke |
| Okonogi Konomi | Senbongi Sayaka |
| Narumi Gen | Uchiyama Kouki |
| Hasegawa Eiji | Yasumoto Hiroki |
| Shinonome Rin | Hanazawa Kana |
| Shinomiya Isao | Genda Tesshou |
| Kaijuu 10-gou | Miyake Kenta |
| Kaijuu 9-gou | Yoshino Hiroyuki |
(C) Boueitai Dai 3 Butai (C) Matsumoto Naoya/Shueisha
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