A thousand years ago, a sorcerer sealed the demon Zenki in stone to protect the world. Chiaki, a direct descendant, lives in modern Tokyo, where her grandmother has taught her the forbidden spell that Breaks Zenki's bonds. To save her own world, she must use the spell, set Zenki free, and try to harness his power to fight off the spirits that are attacking modern Japan. The problem is, this involves his living with her in the family temple, and when he isn't casting spells as a superb hunk of manhood, he takes the form of an annoying brat who's every girl's worst nightmare of a kid brother. <br />