Because they are too sensible, their parents adopted a seemingly well-behaved child who was actually well-behaved in order to experience the joy of raising a child. . . Setting Chapter One: Gong Zhang is an intern, 20 years old, "precocious". Yu Cheng is 12 years old. As I wrote, I felt that the age difference was a bit big, so I tried to narrow it down. The author has no common sense. If there are any bugs, thank you for reporting them. I didn't think about it, so I wrote it down and read it. I didn't have an outline, so I wrote it down and read it. It's my first time writing this type of thing, so I put my thoughts into writing. It will be modified later when there is time.