Episode 1: Is it a person or a ghost?

2020-02-07

The one-of-a-kind prototype of Holo falls into Han So-yeon's solitary life, eager to help with anything she needs — if she will allow him.

Runtime: 58 min

Episode 2: I'll help you by your side.

2020-02-07

Seeing she has a crush on her co-worker, Holo offers to be So-yeon's dating coach. Ko Nan-do monitors their growing bond from his lab.

Runtime: 50 min

Episode 3: What the hell is that woman?

2020-02-07

Nan-do moves in next door to So-yeon, convinced that being with her has broken Holo, and determined to do whatever it takes to fix him.

Runtime: 56 min

Episode 4: He said he would be by my side.

2020-02-07

Conflicted about her feelings, So-yeon tries to distance herself from Holo. Baek Chan-sung sends his men after her glasses.

Runtime: 54 min

Episode 5: I only see you.

2020-02-07

When So-yeon wakes up in the hospital, something's changed about how she sees Holo. He and Ko Yoo-jin urge Nan-do to reveal himself to her.

Runtime: 54 min

Episode 6: I want to be with Holo, and I want to hold hands.

2020-02-07

So-yeon realizes that loving Holo means certain relationship norms are out of their reach. Nan-do deals with unwanted attention from the police.

Runtime: 56 min

Episode 7: You can't leave her alone in hacking, intrusion.

2020-02-07

In danger from those attempting to steal the prototype, So-yeon agrees to stay at the lab. Nan-do puts on his best impression of Holo.

Runtime: 51 min

Episode 8: Can I take out the Holo trapped in the room?

2020-02-07

Runtime: 50 min

Episode 9: Can the three of us be good friends?

2020-02-07

Runtime: 52 min

Episode 10: There is nothing I can do.

2020-02-07

Runtime: 53 min

Episode 11: Wherever you go, Holo.

2020-02-07

Runtime: 53 min

Episode 12: So-yeon recalls the most fearful moment in her life.

2020-02-07

Runtime: 54 min