Kyo Kara Maoh! - God (?) Save Our King!

Yuri Shibuya’s life takes an unexpected turn when a single act of kindness plunges him into a world far removed from his ordinary Japanese high school. After attempting to rescue a classmate from bullies, he finds himself literally flushed into a magical realm, only to discover he's been crowned the new Demon King. This isn't just any kingdom; it’s a land populated by powerful magic users and ancient traditions, where Yuri's modern sensibilities clash hilariously with the expectations of his new subjects. Now, with a loyal (and sometimes bewildering) retinue by his side, Yuri must navigate political intrigue, master burgeoning magical abilities, and somehow maintain peace between humans and demons. From awkward engagements to unexpected battles, his journey to understand his destiny and rule his new domain is an adventure filled with humor, heart, and the occasional baseball reference.

✦ AI-drafted summary