Limit 500 words. The couple divorced 18 years ago, and each took away one of the twins. The twins, each unaware of the other's existence, meet unexpectedly 18 years later. One is a poor middle-class young man who is a miserable senior in high school, and the other is a rich, handsome and top student from Tsinghua University. Under the pleading of the second-best brother, the top student brother agreed to exchange identities and take the college entrance examination for him.
How do twins with very different personalities adapt to completely different life situations, and how do they get along with their parents, who were previously solely breadwinners?
Newbie writing, please forgive me.