Zhang Ming and Qin CuteCute are playmates who have been playing since childhood. This is what we often call childhood sweethearts, whether in elementary school, middle school or even high school. They are studying together, and because they have lived in the same community since childhood, they often have contacts with each other. Occasionally visiting each other is a matter of family property. For Zhang Ming, being able to stay at Qin CuteCute's house every day and not want to leave at all is a happy thing. Of course, this is not just because of his beautiful and cute childhood sweetheart Qin CuteCute, but because Qin CuteCute's sister Qin Qing