Love In Protocol — S1E4

"That's why I came back, growing up"

As the final experiment finally begins, Yu-geon and Jeong-yeon's hidden feelings begin to reveal themselves.

More from Season 1

Episode 1

Don't Look at Me Like That

As an intern at a cognitive science institute, Jeong-yeon meets Yu-geon, his former high school tutor.

10m 2026-01-17

Episode 2

"Do you still see me as a child?"

Participating in a VR test for an emotional reaction experiment, Jeong-yeon faces his own feelings through questions.

8m 2026-01-24

Episode 3

"You don't have to feel guilty, professor"

For the first time late, Jeong-yeon appears in the laboratory injured as in childhood, and Yugeon reacts angrily when he sees him.

9m 2026-01-31