Kim Mi-So lost consciousness as she remembers everything. During her recovery, we see what really happened in the past and also when Young-Joon first saw her after all that time and how long he waited for her to recognise him. Him Mi-So is devastated by what Young-Joon had to go through by himself, remembering everything all the time. Young-Joon tries to force Mi-So to rest, but she returns to her work the next day. So he send the entire team to a spa under pretense of doing it as part of work. Park Yoo-Sik meets his ex-wife at a restaurant where they went for her birthday and runs into her with a guy. He realizes he was her cousin, but only after venting out and accusing her about dating someone new so soon. Young-Joon tells Mi-So to come to his place as he is worried about her regaining memories for his has first-hand experience how painful that was. She refuses, so he appears on her doorstep and tells her if she won't come to his place, he'll be staying at hers.

Young-Joon stays at Mi-So's place, but Kim Mi-So can't seem to relax with him in bed so she's trying to do all other things instead. Eventually, they decide to go to his place because it's much bigger and has multiple rooms. But Young-Joon is still worried and decides to stay next to her and ends up singing her a lullaby. To return the favour for a good-night sleep, she decides to make him a breakfast. More is revealed about Young-Joon past after the incident.

Young-Joon and Mi-So were preparing for a night together, but were abruptly interrupted by the problems at work. By the time the problem was solved, Mi-So already fell asleep and any attempt by Young-Joon to wake her up failed. Young-Joon had to go to business trip for a whole week and that will just add up to them missing each other. Go Gwi-Nam gets promoted and joins the rest of the team on the same floor. Mi-So's father ends up hospitalized and she spends some time taking care of him.