I Fell In Love With my Target (HunHan angst Fiction)

Sehun was sent on earth for a special mission, and his mission is to ruin his target, Luhan's life MORE. Luhan is very miserable. He was hated by everyone. His mother died because of his father, who kept beating him. His father is a drunkard. He cared nothing but drink, and comes home shouting at his own son. Sehun, the devil, witnessed all these. Can he complete his mission, or will he become an ordinary human for his target?