The son of a subjugated country originally went to assassinate his father-killing enemy, Emperor Dongchi, but ended up getting together with the son of his father-killing enemy?
"Master Xiao, do you still remember what I said before?"
"What?"
"Will you follow me?"
"..."
"If you don't answer, you are willing, right?"
Purpose: Don't fall in love with the son of the enemy who killed his father