(WARNING: Hm, should I say it's child abuse or child corruption? Anyway, it's a bit disturbing so if you can't handle the corruption process of young Seo-Jun then you might want to skip this chapter, or better still, prepare your mind)
Mister Sun lost his wife early, and his son looked really sad, so he decided to remarry right away so his son wouldn't feel sad for much longer.
He knew he couldn't do it alone. He knew he couldn't take care of their boy when he was such a wreck.
He needed someone.
At that moment, Ha-eun approached him.
It looked like a coincidence but she manipulated the poor man's heart and made it seem like she was the one he needed at the moment.
Someone to embrace his aching heart and spread her arms for his grieving son.
Quite contrary to the meaning of her name, which meant Great Grace and kind-hearted. Her heart was completely black and so were her tendencies.