Rose of Seoul: Revenge Reborn

Kang Yoo-jin was an heiress and Zheng Xiumin worked under her. Zheng Xiumin was heavy and unsure of herself, and Kang Yoo-jin made a routine of her in front of other people for as long as the two of them were in the same office. It ended on a rooftop with Zheng Xiumin going over the edge. She woke up in a different body, an orphan named Han So-eun, with a Heart Points Exchange System attached to her. It paid out points when someone's feeling for her deepened, and the points went into her face and her figure and changed both by degrees. Her voice got her hired at a private club that took members by invitation. Kang Yoo-jin's arranged fiancé, the suitor who had waited years for her, her cousin and a junior colleague all ended up attached to Han So-eun, and each of them brought money and standing with him. She used that against Kang Yoo-jin's public face, put on record what Kang had done to people who could not answer back, and cut into the Sejin Group's partnerships.