A woman Mianhua ("Cotton") has a project which she hasn't achieved before: for a full-time caretaker of an older obstinate boxer who suffers from Alzheimer's disease. The older man's son with his later wife lives over seas and almost requires care of himand his daughter together along with his ex wife hi res Mianhua to take good care of him - but that the girl distrusts and despises all nannies for"knows only lying, abusing, and shooting advantages". Under precisely exactly the same roof, but the older man and Mianhua start to be friends with each other above time, and he starts to mistake Mianhua as his ex wife whom he owed a love debt to. All a sudden, Mianhua finds out that she got pregnant...