Episode 1 - Is it a person or a ghost?
February 7, 2020 • 58 minutes
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.
Episode 2 - I'll help you by your side.
February 7, 2020 • 50 minutes
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.
Episode 3 - What the hell is that woman?
February 7, 2020 • 56 minutes
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.
Episode 4 - He said he would be by my side.
February 7, 2020 • 54 minutes
Conflicted about her feelings, So-yeon tries to distance herself from Holo. Baek Chan-sung sends his men after her glasses.
Episode 5 - I only see you.
February 7, 2020 • 54 minutes
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.
Episode 6 - I want to be with Holo, and I want to hold hands.
February 7, 2020 • 56 minutes
So-yeon realizes that loving Holo means certain relationship norms are out of their reach. Nan-do deals with unwanted attention from the police.
Episode 7 - You can't leave her alone in hacking, intrusion.
February 7, 2020 • 51 minutes
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.
Episode 8 - Can I take out the Holo trapped in the room?
February 7, 2020 • 50 minutes
Episode 9 - Can the three of us be good friends?
February 7, 2020 • 52 minutes
Episode 10 - There is nothing I can do.
February 7, 2020 • 53 minutes
Episode 11 - Wherever you go, Holo.
February 7, 2020 • 53 minutes
Episode 12 - So-yeon recalls the most fearful moment in her life.
February 7, 2020 • 54 minutes