Domovoi — Russian fairy tale character

A domovoi is a house spirit in Slavic folklore. Domovois (the correct plural form is domoviye) are masculine, typically small, and sometimes covered in hair all over. According to some traditions, the domovoi take on the appearance of current or former owners of the house and have a grey beard, sometimes with tails or little horns.
Traditionally, every house is said to have its domovoi. It does not do evil unless angered by a family’s poor keep of the household, profane language or neglect. The domovoi is seen as the home's guardian, and he sometimes helps with household chores and field work.