The Princess Knight's Kept Man is officially scheduled to air in January 2027. The TV anime, adapted from Toru Shirogane’s light novel, has also released a teaser video, a teaser visual, and visuals of the main characters.
This anime is set in Dungeon City, a harsh city rife with crime and danger. The story follows Arwin, the Crimson Princess Knight, who is searching for a legendary treasure to restore her kingdom, and Matthew, a man who is looked down upon by the city’s residents.
The Kept Man of the Princess Knight Is Set in Dungeon City
The Princess Knight's Kept Man Set in Dungeon City, a city known for its crime, decay, and death. In the midst of it all, Arwin emerges as a key figure as the Crimson Princess Knight.
Arwin and his party of adventurers are exploring a dungeon in the city center. They are searching for a legendary treasure believed to have the power to rebuild Arwin’s fallen kingdom.
Many people want to be by Arwin’s side, but that spot is already taken by Matthew. He is known as a man who is hated by the townspeople. Matthew is considered weak, a coward, and someone who only uses Arwin’s money for alcohol, women, and gambling.
However, that reputation did not tell the whole story about Matthew. No one in town, including Arwin, truly knew what Matthew was capable of.
The story’s main conflict stems from the stark contrast between Matthew’s public image and the abilities he hides. Meanwhile, Arwin’s goal of restoring his kingdom is a key reason behind their journey into the dungeon.

Cast and Production Staff
Anime The Kept Man of the Princess Knight is produced by BLADE.
Here are the main cast and crew members who have been announced:
- Junichi Suwabe as Matthew
- Mikako Komatsu as Arwin
- Chihiro Kumano as Director
- Hisao Ishii as Character Designer
- Deko Akao as Series Scripts
- Taku Iwasaki as Music
- Satoshi Motoyama as Sound Director
- Ippei Tomari as Casting Manager
- INSPION Edge as Sound Producer
In addition to the main staff members listed above, several additional staff members have also been announced for this anime production:
- Hibiki Yamaguchi as Action Director
- Recommendation, Inc. as Prop Design/Monster Design
- Shingo Kakimoto from Quun Plant as Art Director
- Ryosuke Kawai of Quun Plant as Art Director
- Naomi Nakano of Stella as Color Designer
- Yuki Kadomatsu from Stella as Assistant Color Designer
- Yoshinori Ban as 3D Director
- Yumeta Company as 2D Works
- Kodai Washizu as Compositing Director of Photography
- Nobutaka Maki from TAVAC as Offline Editor
- Kiminori Yoshida from TAVAC as Offline Editor
About The Kept Man of the Princess Knight
The Princess Knight's Kept Man (Himekishi-sama's String), also known by its Japanese title Himekishi-sama's String, based on the light novel by Toru Shirogane. The original illustrations for the light novel were created by Saki Mashima.
This light novel series has sold over 200,000 copies. It also won the Grand Prize at the 28th Dengeki Novel Awards.
Kadokawa will release the seventh volume of the light novel on July 10. Yen Press publishes the English version of the light novel and will release the sixth volume on August 11.
The series also has a manga adaptation by Keyyang. Kadokawa released the third volume of the manga in December 2024. Yen Press also publishes the English version of the manga and released its third volume on January 6.

With the teaser video and character art that have already been revealed, The Princess Knight's Kept Man began to provide an initial glimpse of the TV anime adaptation.































