Jiang Jingcheng and Zhang Yichen were brothers who grew up. The two came to this world within a month of each other. In addition, because the two families were neighbors, the two boys had a good relationship since childhood.
In the past, Zhang Yichen was the king of children, and Jiang Jingcheng could only follow him as a follower. But as they get older, the two people have changed each other in terms of personality and other aspects...