Sang-Jeong, the mother of 17-year-old In-Jeong, is the owner of a restaurant with annual sales of tens of billions of won. One day, a middle-aged man with a different force visits the mother and daughter who have only walked the path of money. His name is Yeo Byeong-Hee. He was the unrequited love of Sang-Jeong, the mother, a long time ago... He appeared when Sang-Jeong, who was single, became famous as the owner of a restaurant! He brought his handsome 17-year-old son Yeo Woo-Jin, who is the same age as In-Jeong.
(Source: Naver, translated)

Original Webtoon:
Naver Webtoon, Naver Series