Young Lady and Gentleman

Dan Dan is a hard-working young woman who grew up without her mom, and Young Guk is a widower with three kids.

Dan Dan mistakes Young Guk for a criminal and hits him in the head. Later, Dan Dan gets a job interview.

Dan Dan gets hired to work as the live-in tutor at Young Guk's place, but gets into trouble pretty soon.

Dan Dan and Soo Cheol argue over who should quit, and Young Guk has his wife's things cleared away.

Dan Dan helps Young Guk grow closer to his kids, and a mysterious man shows up to see Sa Ra.

Dan Dan helps Young Guk and Jae Ni reconcile after a fight, and Yeon Sil invites people to the annex.

Soo Chul gets kicked out of Young Guk's home, and Anna begins looking for her daughter.

Soo Chul finds out about the money Dan Dan gave Yeon Sil, and Anna moves in with Young Guk and his family.

Dan Dan gets fired after telling Young Guk the truth about her family, and the kids miss her dearly.

Dan Dan goes back to work for Young Guk. Se Ryeon shows up drunk and asks Dae Bum to take her back.

Sa Ra gets angry after seeing Young Guk carry Dan Dan on his back and her jealousy toward Dan Dan grows.

Dan Dan and Young Guk grow closer over a past connection. Dae Ran and Sa Ra try to have Dan Dan thrown out.

Dan Dan confesses that she has feelings for Young Guk. Dae Ran and Sa Ra lie about the dementia test results.

Dan Dan gives Young Guk time to figure out his feelings, and Dae Bum warns Se Ryeon about her fiance.

Sa Ra leaves her position at Young Guk's house. Young Guk and Dan Dan's relationship gets more serious.

Dan Dan and Young Guk agree to take their relationship slowly. An unexpected guest comes to see Se Ryeon.

Young Guk goes missing while on a hiking trip to the mountain and returns in a shocking state.

Sa Ra and Dae Ran lie to Young Guk about his relationship with Sa Ra, and Dan Dan decides to quit her job.

Bad things keep happening to Soo Chul's family. People who love them try to help them get back on their feet.

Young Guk thinks he cheated on Sa Ra and wants to apologize. Dan Dan decides to follow Anna to the States.

Dae Ran advises Young Guk to become engaged to Sa Ra until he regains his lost memory to keep her happy.

Young Guk becomes jealous after seeing Dan Dan and Hyun Bin together, so he spends more time with her.

Young Guk's conscience begins to eat away at him for liking another woman, so he tries to change.

Sa Ra feels anxious about Gun and asks to see him. Young Guk confesses his feelings to Dan Dan.

The kids are in shock to hear that Young Guk is getting engaged to Sa Ra. Sa Ra asks Dan Dan for help.