Min-ho goes up to the counter and calls Yi-kyung by her name (only it's not Ji-hyun in there) and she calmly responds, "Yes, Kang Min-ho-sshi?" It surprises him, but not as much as it startles her, and an instant later, Yi-kyung's eyes dart back and forth, wondering where that came from, and why she knows this man.
He asks her what she's doing here and if she recognizes him, but she tells him to go and turns around before she gives anything else away. Min-ho doesn't look like he's going to let it go, but luckily, Dr. Noh walks in just in time.
He calls Yi-kyung by name, and can see that she's disturbed, so he sends Min-ho away. Whew. But it's not enough to shake Min-ho's doubts, as he thinks to himself, "Who is that woman? Is it Shin Ji-hyun? Song Yi-kyung?"
I like how fast people are catching on (because it keeps the drama fresh), but damn if the people in this world aren't illogically quick to jump to supernatural conclusions. I mean, I like my sci-fi, but if someone doesn't recognize me, my next thought isn't, they must be possessed by mutant zombie ghosts!. I know what you're thinking: when the zombie apocalypse hits, I won't be long for this world.
Once Min-ho leaves, Yi-kyung sits down with Dr. Noh, who asks if she knows that man. She shakes her head no, and then nods her head yes-she doesn't know him, and yet she knew his name, and could feel that he was bad news.
Dr. Noh then asks if she remembers seeing him yesterday. Nope. He tells her that she didn't recognize him, and looked different too. He concludes that she likely has multiple personality disorder, brought on by her trauma. Well finally, somebody comes to a logical conclusion. Not that it's right, mind you. But if you're not at least exploring the possibility of split personality BEFORE ghost possession, I'm not gonna take you seriously.
She tells him that it's not some made-up personality; and it's not a ghost either. She tells him that she can feel this other person living with her, and caring for her, worrying for her. Aw. "It's the first time, since then... the feeling that someone is genuinely concerned for me."
She finally recounts her origin story: she was abandoned at an orphanage at the age of five, and never even knew her real name. Yi-soo, who had been there since infancy, came and told her she'd be called Song Yi-kyung (naming her after himself, by giving her the same surname and beginning of his given name), and gave her chocolate.
"Yi-soo took away the pain of being abandoned by my mother. Like siblings, like an oppa, like a friend, we were together for eighteen years. That Yi-soo... abandoned me." Just then, we see the Scheduler standing there by the table, listening to their conversation.
Scheduler: "I... abandoned you?"
Yi-kyung: And then he died. I wasn't ready to let him go. There were things I wanted to say. Something I needed to ask him. But Yi-soo left. Being abandoned my mom, I was able to forget that because of Yi-soo. But after being abandoned by Yi-soo... I can't trust anyone anymore... because I'm someone that nobody wants.
Yi-soo finds that he's crying. He wipes a tear away and wonders what this is. (He's not used to being subject to pesky human emotions.) He scoffs in bewilderment: "Tears..."Dr. Noh asks if she hasn't considered moving (Ha-got a ghost? Move!) but she says that despite being scared, she can sense that this woman (Ji-hyun) is earnest and sincere. The doc is worried, but he leaves for now, and Min-ho follows him out. Heh, it's stalker-on-stalker.
At home, Ji-hyun worries that Dr. Noh might've said something about running into her last night, and notices that she's feeling really weak all of a sudden. Uh-oh. Hope it's not a side effect of people getting close to the truth.