Anime adaptation of a light novel The King’s Proposal (Ōsama no Propose) is officially scheduled to premiere in 2027. This announcement was made on October 25, 2026, during the “Fantasia Bunko Dai Kanshasai 2026 Online” streaming event, along with the first visual teaser and the main voice cast. Rie Takahashi will voice Saika Kuozaki, the world’s most powerful witch.
Based on information from Anime Corner, this anime project was previously announced in October 2025. Now, Aniplex also opens official website and accounts Official X @KINGPROPOSE_pr for that anime.
The visual teaser features Saika Kuozaki
First visual teaser The King’s Proposal It shows Saika Kuozaki filling nearly the entire frame. She smiles casually as she extends her right hand forward, as if to demonstrate her authority as the most powerful witch.
This visual also features the tagline “Swear your allegiance to me—and I shall make you my bride.” It roughly means, “Swear your loyalty to me, and I will make you my bride.”
Rie Takahashi will voice Saika Kuozaki
So far, only one voice actor has been announced. Here is the list of cast members who have been announced:
- Rie Takahashi as Saika Kuozaki
Saika is the most powerful witch and the head of the academy where witches study. The official website states that the rest of the cast will be announced at a later date. Aniplex also released a video featuring comments from Rie Takahashi to celebrate this announcement.
A light novel by the creators of *Date A Live*
The King’s Proposal is a light novel by Koushi Tachibana, illustrated by Tsunako. The two of them are the creative duo behind the series Date A Live. According to the visual teaser, the total print run for the series Date A Live has reached 9 million copies.
This light novel is published under Fujimi Shobo’s Fujimi Fantasia Bunko imprint (Kadokawa) since September 2021. There are currently eight volumes, and the ninth volume is scheduled for release in December 2026.
There is also a web manga adaptation illustrated by Nemo Kurio. The manga has been serialized on Square Enix’s Gangan Online website since February 2023 and already has six volumes. For English-speaking readers, Yen Press publishes the English version of the light novel.
A story about the most powerful wizard and an ordinary high school student
The World Within The King’s Proposal faces the threat of destruction roughly once every 300 hours. The wizards quietly save the world by eliminating the “annihilation factor”—an entity capable of destroying the world.
Saika Kuozaki is the only one capable of stopping this threat. However, one day Saika was seriously injured. She then passed on both her powers and her body to Mushiki Kuga, an ordinary high school student who happened to find her.
The problem is, inheriting Saika’s powers doesn’t mean Mushiki can control them. To save the world, Mushiki must attend the wizard academy as Saika, while hiding her true identity.
Comments by Koushi Tachibana and Tsunako
Koushi Tachibana thanked readers for their support. He also revealed that this is his first anime adaptation—excluding sequels—in about 10 years. “I’m feeling a little nervous. It feels like I’m a new writer,” he said.
Tachibana also joked about the many elements in the story that are difficult to animate and apologized to the production staff. Even so, he is confident that the animation will turn out amazing.
Meanwhile, Tsunako expressed her gratitude to the readers and everyone involved. She admitted that she was greatly influenced by the manga version, and that charm is also reflected in the anime. “As soon as the voice acting was added, it felt like the characters immediately came to life. I can’t wait for you all to hear it,” she said.
Poster campaign signed by Rie Takahashi
To celebrate the release of the visual teaser, the anime’s official X account is holding a follow-and-repost campaign. Five winners will receive a visual teaser poster signed by Rie Takahashi.
Here's how: follow the account @KINGPROPOSE_pr Then repost the campaign post. This campaign runs until November 8, 2026, at 11:59 p.m. JST.
The animation studio and other production staff have not yet been announced. For those of you curious about the story of Saika and Mushiki, while you wait for the anime to air in 2027, you can start reading the light novel or manga first.
Cast Comments (Japanese)
