Kage Kara Mamoru!

When an ordinary high school student finds himself thrust into a secret world of ancient lineage and mystical duty, his life takes an extraordinary turn. Tasked with protecting a mysterious girl from unseen dangers, he must quickly adapt to a reality far grander and more perilous than he ever imagined, all while navigating the everyday complexities of school life. This thrilling adventure blends supernatural action with heartwarming comedy as our reluctant hero grapples with his newfound responsibilities. As he uncovers the secrets behind his charge's past and the threats lurking in the shadows, he'll discover that some bonds are forged not just by fate, but by courage and an unwavering commitment to those you care for.

✦ AI-drafted summary