Xia Dong and Xia Yan are not twins. They are just like ordinary siblings. They are also told by their parents that they should have younger brothers and imitate older sisters. The two siblings who have always hated each other traveled through time into anime?
Author: Don't think too much that I am this sister, so I will be more from the perspective of the sister (mainly because I don't understand what my brother is thinking as a child nowadays.)
Purpose: I want my brother to see the awesome side of my sister