My Lovely Sam Soon - Season 1 Episode 15 The old fashioned rules of falling in love
Overview: Samsoon is confused when she sees Jinheon and Heejin getting out of the elevator together. Jinheon asks her not to misunderstand him, but she tells him that she still feels that three people are involved in their relationship. Samsoon goes to Heejin’s house when she hears that Heejin is sick.