In this season finale, Se-jin becomes conflicted about whether or not to help Yi-gyeong upon learning the real reason behind her visit to the hospital. Torn on what to do, Se-jin must make an extremely difficult decision.
While utilizing her newly discovered secrets, Yi-gyeong manages to get herself and Park Mu-sam invited to Jang Tae-jun's office. Upon receiving the news of their secret meeting, Geon-wu becomes alarmed.
A frightened Se-jin flags down Yi-gyeon's car while trembling barefoot through the pouring rain. The mystery of their relationship unfolds through a flashback of their meeting a week prior, at a charity auction.