Description：The family that moved into the new apartment is mother Keiko (You) with four children: Ming (Yumiya Yagira), Kyoko, Shigeru, and Yuki. But the mother had to lie to the people around her, saying that her husband went overseas to work and that she lived with her eldest son. The truth is that the other three siblings are "black children" because the four children have different fathers. They have been staying at home and have not gone to school. When the mother went to work at a department store, the young Ming took over the responsibilities of a parent at home on behalf of her mother. Suddenly one day the mother disappeared, leaving the only 200,000 yen in cash and a short note in her hand to the children, and after entrusting her younger siblings to Ming's care, she quietly ran away from home. Four children who have no relatives and know almost nothing about the outside world have to start facing a new life. That's really...