The Kept Man of the Princess Knight TV Anime’s Promo Video Reveals Myth & Roid’s Opening Theme – News

Kadokawa revealed at the “Dengeki Bunko Aki no Saiten Online 2026″ livestream event on Saturday the first main promotional video for the television anime adaptation of Toru Shirogane‘s The Kept Man of the Princess Knight (Himekishi-sama no Himo) light novel series. The video reveals and previews MYTH & ROID‘s opening theme song “True-Taboo.”

sajou no hana will perform the ending theme song “Gika” (Flower Head).

The event also revealed a new key visual and more cast members.

The new cast members include:

The anime will debut in January 2027.

The anime stars Junichi Suwabe as Matthew and Mikako Komatsu as Arwin.

Chihiro Kumano (Eiga Odekake Kozame Tokai no Otomodachi, A Couple of Cuckoos) is directing the series at BLADE. Hisao Ishii (There’s No Freaking Way I’ll Be Your Lover! Unless…, In Search of the Lost Future) is designing the characters based on the original light novel designs by Saki Mashima. Deko Akao (After the Rain, Arakawa Under the Bridge) is in charge of series scripts.

Other staff members include:

Yen Press publishes the novels in English and describes the story:

The Dungeon City is a wicked place filled with crime, debauchery, and death. Its one shining light is Arwin, the beautiful Crimson Princess Knight. She and her brave party of adventurers descend into the dungeon at the city’s center, seeking a legendary treasure with the power to rebuild the princess’s fallen kingdom. Many yearn to be by her side, but that spot is already taken by Matthew, a man despised by all in town as a cowardly weakling. Everyone thinks he is scum who just spends her hard-earned money on booze, women, and gambling. No one in the city—not even the princess knight— knows what Matthew is truly capable of.

Shirogane’s light novel series reached over 200,000 copies in circulation and won the 28th annual Dengeki Novel Awards grand prize. Kadokawa shipped the seventh novel volume on July 10. Yen Press shipped the sixth volume on August 11.

Keyyang launched a manga adaptation of the light novel series. Kadokawa shipped the third compiled book volume in December 2024. Yen Press publishes the manga in English and shipped the third compiled book volume on January 6.

Source: Dengeki Bunko Aki no Saiten Online 2026 livestream

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