Ousama no Proposal

In the anime Ousama no Proposal, the fate of the world rests with the all-powerful witch, Saika Kuozaki, who thwarts a cataclysmic threat every 300 hours. When a fateful encounter leaves her mortally wounded, she transfers her immense powers—and her physical form—to an ordinary high school boy named Mushiki Kuga.

Now, Mushiki must navigate a dangerous new reality, mastering abilities he never asked for while concealing his true identity. To protect the world, he enrolls in a prestigious academy for mages, posing as Saika herself. The anime weaves a story of hidden identities, unexpected responsibility, and the struggle to wield great power in a world of magic and mystery.