With Myul Mang out of her life, Dong Kyung collapses both physically and emotionally. Meanwhile, those around Dong Kyung come to know about what she has been going through recently.
Myul Mang eventually shows himself to Dong Kyung. This time, Dong Kyung disappears into thin air, with all traces of her from the world. Meanwhile, Joo Ik finds himself at Ji Na's place as his feelings for her grow stronger.
As Doom tries to recall why Dong Kyung is familiar, he inserts himself into her life in several forms. Meanwhile, Ji Na begins to realize that her feelings for Joo-Ik may be more real than her old feelings for Hyun-Kyu.
Confused and bewildered, Dong Kyung tries to find ways to deal with Myul Mang's confession. Meanwhile, Ji Na starts her personal session with Joo Ik before she steps out for the school reunion.
Miraculously enough, Dong Kyung and Myul Mang recognize each other. However, it wasn't long before fate knocked on their door, saying that it's time for them to go.
Dong Kyung's plan is to love Myul Mang to the point he would disappear. Dong Kyung wrestles with various ways to feel love toward him, and eventually, Myul Mang is triggered by an unexpected turn of events.
After Myul Mang goes away, Dong Kyung goes on living her life, feeling grateful for it with the people she loves, waiting for him to come back. When she goes to his house, she sees something that he had left behind.
At a meeting with a writer whose day job is doctor, Dong Kyung gets an MRI scan and hears that she'll be dying in three months. Even before she accepts this shocking news, she finds out her boyfriend was actually a married man.
Dong Kyung somehow ends up living with Myul Mang. Although she is well aware of her nearing death, she takes the trouble to continue with her mentally and physically draining daily routine.
Watching Dong Kyung risk her life to save him makes Myul Mang wonder about the reason behind her recklessness. Myul Mang then starts to follow around Dong Kyung as suggested in hopes to understand humans.