Tengu to Warashi

Kongo is a mighty tengu warrior who was able to stop the entire Hyakki Yagyou by himself. On his way home, a zashiki warashi attached itself to him, and when Kongo got home, he found "Warashi" has taken the form of a little girl! Living with the mischievous and free-spirited Warashi will turn Kongo's life upside down! (Source: Shonen Jump, translated)