Zashiki-warashi

 Zashiki-warashi: The ghosts of children, often mischievous rather than dangerous.
 Zashiki-warashi (座敷童/座敷童子 zashiki-warashi^?), sometimes also called zashiki-bokko (座敷ぼっこ zashiki-bokko^?), is a Japanese yōkai, stemming from Iwate Prefecture, similar to a domovoi.