Zhou Yichen and the eldest princess are childhood sweethearts, each is the other's first friend.
Later, Zhou Yichen's family was slaughtered and he became a traitorous son, planning to take revenge on the emperor; the eldest princess wanted to rebel because she was dissatisfied with her brother's governance.
"You are in the light and I am in the dark. Together we can restore a peaceful and prosperous age to the people."
Purpose: entertainment
