S1E4: An Unwelcome Visitor

Ju-won feels exhilarated about going on a date with a boy who is good-looking and smart, but she soon gets disappointed by what he says to her. San-ha and his father are upset by an unwelcome visitor who reminds San-ha of memories he doesn’t want to recall. A surprise present from Hae-joon’s biological father brings about a conflict between Hae-joon and his colleague.