There are many kinds of “faeries”, and one that is considered a “helper”, is called the Domovoi. They are house spirits that originated from the Slavonic people of eastern Europe. In Russian, домово́й; literally means, “he of the house”. They can assume various forms but usually appear as hairy, gray-bearded little men.
What they like about living with people is the warmth of the hearth, like most faeries, they cannot make fire themselves. In traditional Russian houses, the hearth shares a chimney with the oven, and food is left for the domovoi at night. By leaving them food, helps to keep them friendly. Their primary purpose was that of a guardian of the house, defending from evil spirits and intruders.
Besides being a guardian, they also provided omens good or bad that may happen in the future. They may pull someone’s hair to warn of an accident or sickness. A cold touch meant something bad, a warm furry touch was a good sign. If he is angered, he can play tricks on members of the family by moving things around, or making tapping sounds.
The Domovoi tends to become attached to his house, but when a family moves to a new home, they should place some food near the oven to make sure he follows.