One is a "stupid" and smart brother, and the other is a "silly" and shrewd brother. Who plotted against whom? Who fulfilled whom?
Qin An didn't realize it until now: "Brother, I want you."
Qin Cheng: "It's too late."
Qin's father and Qin's mother: "... We must consider our feelings!"
Brothers: "It's too late!"
Author: "Hey, don't think about my feelings, la la~"
Everyone: "Get out!!!!"