Yeong-suk Jeong

Yu-jeong, a suicidal young woman, is introduced to a man on death row named Yun-soo by her aunt, Sister Monica. Raised by an abusive father, Yun-soo has led a hard life. It got even harder when he was left in an orphanage with his younger brother after his father`s suicide and his mother`s abandonment. Growing up in the gutter, he became involved in a violent crime, for which he was convicted of three counts of murder. Yu-jeong, on the other hand, comes from a rich family. (divxforever.in)

Soo-na, a 17 year-old student who lives in a huge mansion with her uncle and grandmother, is driven over the edge after the suicide of her best friend. She locks herself in her room, talks to someone that nobody else can see, and tries to kill herself in front of her family. Her uncle, Se-jin, enlists the help of his fiancé, Yoon-mi, a psychiatrist who specialises in hikikomori. Yoon-mi suspects that Soo-na's condition is related to some hidden family history. (Wikipedia)

Su Jung, only child of a millionaire, supports Sung Min who came from poor background. He becomes a doctor but they start getting apart. He falls in love with Mi Ok who plays piano at a salon and Su Jung bribes people around him to destroy him. He loses his memory and Mi Ok takes care of him. Su Jung finds them and try to take him away from Mi Ok. (mydramalist)

Se-hie decides to break off her affair with Jin-hyun after she meets his wife at a publisher's party. However, Jin-hyun's wife is not going to make things easy on Se-hie once she realizes what has been going on. (imdb)