Ma Jin Joo

During her college years, she was the top student in her major, but after meeting Choi Ban Do on her first blind date and marrying him, she is now an ordinary housewife raising a two-year-old child. Exhausted from childcare and tired of her husband's indifference to their family, she eventually divorced him after witnessing a suspicious photo that could suggest his infidelity. On the day the divorce decree was issued, she went to sleep and woke up to find herself back in 1999, as a 20-year-old freshman in the Department of History.

(Source: Korean = NamuWiki || Translation = MyDramaList)