Rina Hidaka has roles in three upcoming anime: Nia Liston: The Merciless Maiden, Weakest MAX Lady, and The Eccentric Doctor of the Moon Flower Kingdom. She is also scheduled to appear at an Inu x Boku SS 15th anniversary stage at the Kitakyushu Pop Culture Festival on November 28 and 29, 2026.
Rina Hidaka's year is a mix of new castings, an anniversary appearance, and a personal milestone. Across eight stories, three involve anime that have announced Hidaka as part of their main casts: Nia Liston: The Merciless Maiden, Weakest MAX Lady, and The Eccentric Doctor of the Moon Flower Kingdom. Each places her in a different production pipeline, with Nia Liston the only one currently set for a premiere date, October 6.
The personal news came in July, when Hidaka and fellow voice actor Yuma Uchida announced the birth of their first child, a daughter. The joint statement on X drew more than 152,000 likes and 1,600 replies. The couple married on January 1, 2024. The announcement is the only non-role story in the set, and it is the most recent item that is not tied to a specific production.
The oldest thread in the coverage is Inu x Boku SS, which Hidaka voiced as Ririchiyo Shirakiin. In October 2026, Aniplex announced a 15th anniversary project and opened a special website. The only concrete event attached to that project is a stage at the Kitakyushu Pop Culture Festival on November 28 and 29, where Hidaka and Yoko Hikasa are scheduled to appear. A separate story adds that anniversary comments from the main cast and staff accompany the site. No other components of the project have been specified.
The remaining role stories share a pattern: Hidaka is cast in fantasy or game-world comedies. In Weakest MAX Lady, she plays Caroline Ramsey, the heroine of an otome game, with Sora Amamiya and Haruki Ishiya as a couple whose engagement is threatened by the game's plot. In The Eccentric Doctor of the Moon Flower Kingdom, she plays Koyo, part of a main cast that includes Takeo Otsuka, Taito Ban, and Shoya Chiba. No premiere date has been set for that series.
Synthesized by Yomimono from the cited Yomimono stories below, each itself sourced, then editorially reviewed. Every fact links the story it came from.
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A special website marking the 15th anniversary of the Inu x Boku SS TV anime is open. The Kitakyushu Pop Culture Festival, running November 28 and 29, 2026, will host an Inu x Boku SS TV Anime 15th Anniversary Stage with Rina Hidaka, who plays Ririchiyo Shirakiin, and Yoko Hikasa, who plays Nobara Yukinokouji, scheduled to appear. Anniversary comments from the main cast and staff accompany the site.
Aniplex announced a 15th anniversary project for the TV anime "Inu x Boku SS" and opened a special website. Details will follow in later reports. Rina Hidaka, who played Ririchiyo Shirakiin, and seven other main cast members, plus director Naokatsu Tsuda and character designer Haruko Iizuka, contributed comments. The series is scheduled for a stage event at the Kitakyushu Pop Culture Festival on November 28 and 29.
The television anime of Umikaze Minamino's Nia Liston: The Merciless Maiden light novels has an ending theme. Magic Vision Girls Party, the in-story unit of Nia Liston (Honoka Inoue), Hildetora Altoir (Rina Honnizumi) and Reliared Silver (Rina Hidaka), performs "Tokimeki Un・Deux・Trois♪". The staff also released a new visual of the unit. The anime premieres on October 6 on Tokyo MX, BS NTV and MBS, runs two consecutive cours, and streams on HIDIVE, ABEMA, d Anime Store and U-NEXT.
C4 Connect's Houchishoujo is holding a collaboration with the TV anime That Time I Got Reincarnated as a Slime from September 8 to September 28. Rimuru (CV: Miho Okasaki), Milim (CV: Rina Hidaka), and Shion (CV: M・A・O) appear in Houchishoujo-original bunny girl costumes with newly recorded voices. In the event "Longing and Watching Over," Shion can be obtained for free.
The television anime adaptation of Umikaze Minamino's Nia Liston: The Merciless Maiden light novel series will premiere on October 6 at 9:25 p.m. JST on Tokyo MX, followed by broadcasts on BS NTV and MBS. The announcement came with the first promotional video, a key visual, and three new cast members. Fūka Izumi joins as Rinokis Funk, Rina Honnizumi as Hildetora Altoir, and Rina Hidaka as Reliared Silver. Honoka Inoue stars as the titular Nia Liston. Motoki Nakanishi directs at KONAMI animation, with Haruta Segi as assistant director. Gigaemon Ichikawa handles series scripts, Yūki Itō and Kana Tosaoka design the characters, Naoki Endō composes the music, and Hiromi Kikuta directs the sound. The anime will hold an advance screening of its first three episodes on September 22 at esports TOKYO BAY studio. The light novel series launched on the Shōsetsuka ni Narō website in 2019 and ended there in 2021, with Hobby Japan publishing the novels from September 2022. The 11th volume was released on June 1.
Voice actors Rina Hidaka and Yuma Uchida announced on July 19, 2026, that they have welcomed their first child, a daughter. In a joint statement posted on their official X accounts, the couple said both mother and baby are healthy and expressed gratitude to supporters. They added that they want to live each day as a family with smiles. Hidaka and Uchida married on January 1, 2024. Hidaka is known for roles such as Last Order in A Certain Magical Index, Milim Nava in That Time I Got Reincarnated as a Slime, and Silica in Sword Art Online. Uchida is known for Megumi Fushiguro in Jujutsu Kaisen, Iori Kitahara in Grand Blue Dreaming, and Kyo Soma in Fruits Basket. The announcement received over 152,000 likes and more than 1,600 replies on X as of press time. The couple also thanked those who supported them during the pregnancy and birth, and said they will continue to work hard while cherishing every opportunity.
The first promotional video for the TV anime adaptation of "Yowaki MAX Reijou na no ni, Retsuwan Konyakusha-sama no Kake ni Notte Shimatta" has been released. The video reveals three new cast members: Rina Hidaka as Caroline Ramsey, Sora Amamiya as Erin White, and Haruki Ishiya as Henry Cox. The anime is a villainess-type love comedy about a timid protagonist who reincarnates as an otome game villainess. It is directed by Nobuaki Nakanishi at Jumondo and is scheduled for October 2026.
Kadokawa announced on Friday that Tōru Himuka's manga The Eccentric Doctor of the Moon Flower Kingdom is being adapted into a television anime. Koichiro Kuroda, an episode director on Detective Conan and Yowamushi Pedal New Generation, is directing the series at Studio Elle. Risa Mizuno, writing under the pen name Aki Mizuki, is handling series scripts. Akira Ono is designing the characters, Hozumi Gōda is directing sound, and Shiho Terada is composing the music with Highway Star producing. The main cast includes Rina Hidaka as Koyō, Takeo Ōtsuka as Keiun, Taito Ban as Shingdam, and Shōya Chiba as Shiei. A teaser trailer has been released, but no premiere date has been set. The manga began serialization in Kadokawa's Asuka magazine in 2018 and has 15 volumes as of May 2026. Seven Seas Entertainment publishes the English edition, which describes the story as a Chinese-style imperial medical fantasy about a young doctor and a crown prince confronting conspiracy and tradition.