As the sole heir of the family and a nobleman, she came for the family mission. She unexpectedly met him, a local elite. She fell in love with him but had to hide her identity. She was filled with guilt, but her friend told her the truth that she couldn't believe. It turned out that he... They fell in love and broke up in two years... She finally recovered from her heartache in the company of her aristocratic childhood sweetheart. She walked into his work circle when she was managing her own family. In more than a year, his group has entered the eyes of the rich. She, who is powerful, and her childhood sweetheart, who is talented and better than others, appeared in front of him in a top family background. Three years ago, he was the sky, and she was the earth who hid her strength and background. Now she is higher than his "heaven". When she faces him again, is it revenge? Is it reconciliation? Is it forgetfulness?