Omamori Himari

For centuries, the demons known as ayakashi have been hunted and killed by a select few families, their blades passed down through generations. Yuuto Amakawa, a seemingly ordinary high school student, is the last descendant of one such family, but for him, the ayakashi are merely figures of folklore. On his sixteenth birthday, however, his tranquil life is shattered by the appearance of Himari, a beautiful, sword-wielding catgirl who declares herself his protector. Himari is a demon herself, bound by an ancient oath to guard Yuuto from the very creatures her kind once fought. Now, with powerful ayakashi emerging from the shadows to claim Yuuto, he finds himself caught between otherworldly threats and the chaotic, often embarrassing, antics of his new guardian. Get ready for a supernatural action-comedy where ancient traditions clash with modern life, and a boy's destiny is far more complicated than he ever imagined.

✦ AI-drafted summary