Constellation:

Character:

Bincho-tan, the main character in the anime, is a young girl who lives by herself in an old house far from town. As her name suggests, she often wears a piece of charcoal on her head. Each episode depicts a day in the life of Bincho-tan who needs to work in order to buy food and necessities.She is assumed to be an orphan because she lives by herself, refuses to answer shopkeepers who ask where her mother is and keeps to her habits of greeting and farewelling herself when traveling. She apparently, also possesses the ability to change the size of her body. 

Source from Wikipeida