Shin Soo-bin

Shin Soo-bin is the main protagonist of "'Til Debt Do Us Part," who is a kind yet strong-willed woman. She owes a large debt to Ji Ye-jun, her former classmate and enemy, and gets an offer to temporarily marry him to clear off her debt.

As Soo-bin spends time with Ye-jun and pretends to be his wife, she begins to develop feelings for him and soon fall in love with the man she hated.

Towards the end, Soo-bin would start a loving family with Ye-jun and have a child named Seorin.

(Source: tvtropes.org)