According to an Anime News Network report, official website anime Multi-Mind Mayhem: Isekai Tensei Soudouki has released a second promo video and a second key visual. The series will premiere on 6 January 2027.
The opening theme is Isekai, performed by Maverick Mom. The ending theme, Brand new day, is performed by Tokino Sora. Both are already used in the second promo video, as explained on the official music page.
Three Souls in Bard
In the official synopsis on the official website, Bard is the son of the noble Cornelius family in the Kingdom of Mauricia. Two other souls live in his body: Sanai Oka, a Sengoku-period commander who once served the Uesugi clan, and Masaharu Oka, an otaku high-school student who likes animal ears. Sanai’s soul hones Bard’s talent for trade and swordsmanship, while Masaharu’s knowledge as a modern person brings various inventions and great profits. The three souls become one, and Bard begins to stand out in regional affairs and on the battlefield, to the point that he can influence the fate of his country.

The official website also announced six new voice actors. Marina Inoue plays Maggot, Bard’s mother; Takehito Koyasu plays Ignis, his father. Toshiki Kumagai is Brooks, Bard’s friend at the Royal Knight Academy, and Ari Ozawa is Teresa, his childhood friend. Kohei Yanagi plays William, the fourth prince of the Kingdom of Mauricia, while Yuki Sakakihara plays Franco, the second prince of the Kingdom of Sanfan.
Production Staff
Here is the staff already announced on the official staff and cast page.
- Original Work: Ryosen Takami (AlphaPolis)
- Original Illustrations: Ririnra
- Manga: Honoji
- Director: Hiroaki Sakurai
- Series Composition: Keiichiro Ochi
- Animation Character Original Design: Hajime Watanabe
- Character Design: Zenjiro Ukulele
- Music: Ryoshi Takagi
- Opening Theme: Isekai by Maverick Mom
- Ending Theme: Brand new day by Tokino Sora
- Animation Production: Studio DEEN
For the voice cast, the official website lists the following performers, including the six newly announced names.
- Bard: Yusuke Kobayashi
- Sanai Oka: Takashi Matsuyama
- Masaharu Oka: Satoshi Inomata
- Seillune: Yukari Anzai
- Selina: Ayasa Ito
- Silke: Sumire Morohoshi
- Maggot: Marina Inoue
- Ignis: Takehito Koyasu
- Brooks: Toshiki Kumagai
- Teresa: Ari Ozawa
- William: Kohei Yanagi
- Franco: Yuki Sakakihara
About Multi-Mind Mayhem: Isekai Tensei Soudouki
The original novel was written by Ryosen Takami, illustrated by Ririnra, and published by AlphaPolis. The official website says the series has surpassed 1.5 million copies. The manga adaptation is by Honoji.
Further official information is available on the official Multi-Mind Mayhem: Isekai Tensei Soudouki website and its official X account.
For those waiting for the anime adaptation of this novel, the premiere date has been set for 6 January 2027. The second promo video can be watched below.
Second Promo Video






























