Su-yeon Oh

This drama is about two girls, Jin Sun Mi (Chae Rim) and Heo Young Mi (Kim So Yeon). Sun Mi had a nice childhood and grew up with lots of love from her father. Young Mi's mother left her when she was young and her father was a drunk who recently died. She had a hard childhood but never gave up and made it into college. (mydramalist.com)

A heartbreaking tell of two people who are separated after its discovered they aren't brother and sister. The separation grows their love after they were abruptly kept apart.After 10 years they are reunited but due to different circumstances are kept apart. (imdb)

As a young "orphan", Lee Woo Jin / Andrew received horrible treatment while growing up under the care of his aunt (father's sister). When his uncle (mother's brother), a priest, found out what happened, he took him under his wings. Growing up in the church orphanage, Andrew longed to become a priest. Years later, Cho Eun Ha came to live in the orphanage after her mother passed away. (mydramalist.com)