
Jeong Yeon joins the research lab of Yu Geon, his former private tutor, as an intern. However, Yu Geon’s attitude upon their reunion is cold. An experiment that studies…
Drama • Series • 2026 • 1 season
Starring: Lee Sang-min, Jeong Jae Jong, Kwak Geon-hee
Created by: Yoo Hwansang

S1 E1 - 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.
Jan 17, 2026 • 10m

S1 E2 - "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.
Jan 24, 2026 • 8m

S1 E3 - "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.
Jan 31, 2026 • 9m

S1 E4 - "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.
Feb 7, 2026 • 14m
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Love In Protocol
Jeong Yeon joins the research lab of Yu Geon, his former private tutor, as an intern. However, Yu Geon’s attitude upon their reunion is cold. An experiment that studies emotions, and two people facing each other once again. Subtle waves begin to ripple between Jeong Yeon and Yu Geon.
Drama • TV Series • 2026