The Duke's Son Anime Adds Ryōhei Kimura and Ryōta Suzuki to Cast

The addition of a crown prince and his aide to the cast list suggests the anime will expand beyond the central couple's household into court politics and wider kingdom dynamics.

Reporting from 3 sources: Anime News Network, Anime Trending, The Fandom Post.

The Duke's Son Anime Adds Ryōhei Kimura and Ryōta Suzuki to Cast

The television anime adaptation of the romance fantasy manga The Duke's Son Claims He Won't Love Me Yet Showers Me with Adoration announced two new cast members on Wednesday. Ryōhei Kimura voices Aleksis Josef Ralt, the crown prince of the kingdom of Ralt and lord of Julius Royus. Ryōta Suzuki voices Jere Ekrous, an aide to Prince Aleksis. The series is scheduled to premiere in July on TV Asahi and BS Asahi. The previously announced cast includes Yui Ishikawa as Elsa Eukrainen, Sōma Saitō as Julius Royus, Kaito Ishikawa as Jarmo Parnilla, Chika Anzai as Serafiina Parnilla, Hibiku Yamamura as Rebeka Rikkonen, and Junya Enoki as Hannes Eukrainen. Hitoyuki Matsui directs at studios Zero-G and Grass, with Kaoru Suzuki credited for planning technical direction. Tomoko Konparu oversees series scripts and Yūko Yahiro designs the characters. MICHIRU composes the music. The manga, written by Kei Misawa and illustrated by Natsu Mizuno, began on the BookLive digital bookstore in February 2021. Flex Comix shipped the fifth compiled volume on March 13 and offers the series in English on digital platforms.

The new cast members were revealed on the series' official website and X (formerly Twitter) account, where character art for Prince Aleksis and Jere Ekrous was also posted. Aleksis is not only the crown prince of the kingdom of Ralt but also the direct lord of Julius Royus, the male lead. Jere Ekrous is described as one of Prince Aleksis's aides, a role he shares with Julius. This connection places both new characters inside the existing power structure of the story.

The anime will premiere in July 2026, a year that two of the three cluster sources specify. The earlier summary omitted the year. Saber Links is handling sound production for the series, a credit that went unmentioned in the summary.

Ryōhei Kimura recently voiced Yuga in There Was a Cute Girl in the Hero's Party, So I Tried Confessing to Her, and Ryōta Suzuki is currently voicing Yashiro in Scum of the Brave. The manga is serialized on Flex Comix's COMIC Polaris web comic platform, where it has been running since February 24, 2021. A light novel adaptation of the series was also published in October 2021.

Flex Comix describes the premise in its English digital release: Elsa, a fallen aristocrat's daughter, receives a marriage proposal from the elite nobleman Julius. After the wedding, his demeanor shifts completely. In a cold voice, he tells her, "I have no intention of loving you." The anime's official Japanese title is Kimi wo Aisuru Ki wa Nai to Itta Jiki Koushaku-sama ga Nazeka Dekiai Shitekimasu.

Synthesized by Yomimono from the 3 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.

Sources