Mushoku Tensei III Episode 8 Advance Cuts Reveal Chaos Breaker Arc Start
The Chaos Breaker Arc introduces a major antagonist figure from the original story, and the special program and marathon broadcast scheduled for the airing date indicate the production committee is treating this arc transition as a significant event for the franchise.
Key Facts
- Mushoku Tensei III Episode 8, titled "Sky Fortress," airs on Sunday, August 16 at 24:00 on TOKYO MX, BS11, and other channels.
- Episode 8 begins the Chaos Breaker Arc, in which Rudeus meets Perugius, the "Armored Dragon King," one of the Three Heroes who slew the Demon God.
- Perugius is voiced by Rikiya Koyama.
- A special program and a marathon broadcast of Episodes 3 to 7 are scheduled on ABEMA on August 16.
- The original novel by Rifujin na Magonote has a total cumulative circulation of 18 million copies.
Reporting from 2 sources: GAME Watch (Impress), Real Sound Anime.
The TV anime Mushoku Tensei III: I'll Be Serious When I Go to Another World has released advance scene cuts and a synopsis for Episode 8, titled "Sky Fortress," which marks the beginning of the new Chaos Breaker Arc. In the episode, Rudeus, seeking a way to cure his mother Zenith, gains an audience with Perugius, one of the Three Heroes who slew the Demon God, through an introduction from Nanahoshi. Perugius, known as the "Armored Dragon King," resides in the sky fortress Chaos Breaker. The advance cuts show Perugius's dignified expression. The synopsis notes that after hearing about Zenith, Perugius mentions an unexpected person's name. Episode 8 is scheduled to air on Sunday, August 16, at 24:00 on TOKYO MX, BS11, and other channels, with simultaneous streaming on ABEMA and d Anime Store. Perugius is voiced by Rikiya Koyama. The series is based on the novel by Rifujin na Magonote, which has a total cumulative circulation of 18 million copies. The third season has aired the peaceful "Rudeus Youth Arc" in its first half, and this new arc shifts to a tense, weighty atmosphere.
- The special program "New Chapter Entry Special: To the Sky Fortress Chaos Breaker!" streams on ABEMA Anime Channel 1 at 20:00 on August 16, before the episode airs.
- Yumi Uchiyama (Rudeus), Ai Kayano (Sylphiette), Konomi Kohara (Roxy), Reina Ueda (Ariel), and Shion Wakayama (Nanahoshi) appear in the special to review the first half and introduce new chapter highlights.
- A marathon broadcast of Episodes 3 to 7, the "Rudeus Youth Arc," follows at 21:30 on ABEMA's Isekai/Fantasy Anime Channel.
- 2026 marks the fifth anniversary of the anime adaptation, a memorial year, per Real Sound.
- Director is Ryosuke Shibuya, who also handles series composition with Naoto Taniuchi. Animation production is Studio Bind, with production by EGG FIRM.
- Character design is by Masae Shimada and Ryota Furukawa. Music is by Keisuke Fujisawa.
- The opening theme is Yuiko Ohara's "Ketsui no Uta" (Song of Determination), and the ending theme is Mika Nakashima's "Inori, Owareba" (When the Prayer Ends).
- Perugius is voiced by Rikiya Koyama, whose advance cuts show a "dignified expression," per the synopsis.
- The cast list also includes Tomokazu Sugita as the Man from Previous Life, Hisako Kanemoto as Zenith, and Ai Kakuma as Eris.
- Other services stream episodes sequentially every Wednesday from 24:00, after the ABEMA and d Anime Store simultaneous broadcast.
Synthesized by Yomimono from the 2 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.
Sources
- GAME Watch (Impress) 「無職転生III」第8話のあらすじ＆先行カット公開！ いよいよ新章「ケイオスブレイカー編」に突入
- Real Sound Anime 『無職転生III』第8話先行カット公開 ケイオスブレイカー編突入、“甲龍王”ペルギウスが登場