A new anime adaptation has been officially announced for King’s Proposal (also known as Ōsama no Propose), the popular light novel series penned by Koushi Tachibana and illustrated by Tsunako, the renowned duo behind the Date A Live franchise. The announcement was made during the “Fantasia Bunko Hōsōkyoku Aki no Dai Kanshasai” livestream event on October 25, 2025.
While an anime series has been confirmed, further details regarding the production studio, cast, and a specific release date are yet to be revealed.
Diving into King’s Proposal‘s Intriguing Premise
King’s Proposal plunges readers into a world where powerful mages safeguard humanity from destructive entities known as “annihilation factors” that emerge every 300 hours. The story centers on Saika Kuozaki, an exceptionally powerful and beautiful mage who serves as the headmistress of a mage academy and is the sole individual capable of neutralizing these threats.
The Unexpected Succession
In a pivotal moment, Saika is mortally wounded. In a desperate act of survival and to ensure the world’s protection, she transfers her formidable powers and even her physical body to an ordinary high school student named Mushiki Kuga, who stumbles upon her. This sudden inheritance thrusts Mushiki into an extraordinary predicament.
A New Identity and Hidden Powers
Now inhabiting Saika’s body and possessing her colossal magical abilities, Mushiki faces the daunting task of mastering these new powers while simultaneously attending an academy for mages under Saika’s identity. He must maintain this elaborate masquerade, concealing his true identity from his classmates and teachers, all while preparing to face the lurking enemies ready to strike at any sign of weakness. His life is further complicated by the unexpected reunion with his younger sister, who seeks his counseling about her affection for her own brother. The series is categorized under genres such as shonen, slice of life, school life, action, comedy, gender bender, and fantasy.
The Creators: Koushi Tachibana and Tsunako
The creative force behind King’s Proposal is the celebrated duo of author Koushi Tachibana and illustrator Tsunako, best known for their work on the immensely popular Date A Live light novel series.
Koushi Tachibana’s Writing Prowess
Koushi Tachibana’s narrative style, characterized by its blend of action, fantasy, and engaging character dynamics, has garnered a significant following. His ability to craft compelling plots and develop memorable characters has been a hallmark of his work, as seen in Date A Live which has been adapted into an anime across several seasons.
Tsunako’s Distinctive Art
Tsunako’s vibrant and distinctive character designs are integral to the appeal of their collaborative projects. Her illustrations for Date A Live are widely recognized, and she also provided a commemoration visual for the King’s Proposal anime announcement.
The Journey of the King’s Proposal Light Novels
The King’s Proposal light novel series began its publication under Fujimi Shobo’s Fujimi Fantasia Bunko imprint in September 2021. As of August 2025, eight volumes of the light novel have been released.
Yen Press has licensed the light novels for English release, with the first volume becoming available on November 22, 2022.
Manga Adaptation
In addition to the light novels, a web manga adaptation of King’s Proposal, illustrated by Nemo Kurio, commenced serialization on Square Enix’s Gangan Online website in February 2023. As of March 2025, the manga has six tankōbon volumes released in Japan.
The announcement of the anime adaptation has generated excitement among fans of Tachibana and Tsunako’s previous works, eager to see the magical and adventurous world of King’s Proposal brought to life on screen.
