Ban Hyo Jung

Han I Ju, a painter adopted by Han Jin Ung and Lee Jeong Hye, has always been neglected by her family, including her younger sister, Han Yu Ra. Married to Yoo Se Hyeok, I Ju discovers he loves her sister instead. After a car accident, she wakes up in the past, before her engagement to Yoo Se Hyeok. Determined to change her fate, she breaks off the engagement and proposes a contract marriage to Seo Do Guk, the handsome grandson of the Taeja Group’s founder. He agrees, but hopes for it to become a real marriage. (Source: MyDramaList) ~~ Adapted from the web novel "Perfect Marriage Revenge" (완벽한 결혼의 정석) written by Lee Beom Bae (이범배) and illustrated by Maximum (맥시멈).

Ko Eun Seong's life is similar to Cinderella's. After her father died, her stepmother, Baek Seong Hui, took away all of her assets and her younger brother, Eun U, suddenly disappears without a trace. Despite this, Eun Seong perseveres and works really hard to fulfil her dreams. When the CEO of a food company, Jang Suk Ja, suffers amnesia and can't remember who she is, Eun Seong takes her in. However, Eun Seong does not know that she is the grandmother of Seon U Hwan, the man who she switched bags with at the airport. How will their constant bickering lead them to realize that they care more about each other than they let on? (Source: MyDramaList)