The Kept Man of the Princess Knight TV Anime's Promo Video Reveals Myth & Roid's Opening Theme
Oct 3
More cast revealed; sajou no hana performs ending theme
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."
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.
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.