The Potato Lab (Korean:감자연구소) is a South Korean television series written by Kim Ho-soo, directed by Kang Il-soo, and starring Lee Sun-bin and Kang Tae-oh. The series is about a woman obsessed with potatoes swept away by a principled man like a tornado potato. It aired on tvN every Saturday and Sunday at 21:20 (KST) from March 1 to April 6, 2025. It is also available for streaming on Netflix in selected regions.
Synopsis
A passionate researcher's life takes a turn when a strict director arrives at her potato lab — proving that love can sprout in the most unusual places.
Set in a mountain valley at a potato research center, the story is about a woman named Kim Mi-kyung, a potato-crazy researcher who is starting a fresh life again, and So Baek-ho, who energizes her fighting spirit.
A potato-crazy researcher. She is quite annoying, unorthodox, and fiery, which interests So Baek-ho. However, she is very passionate about her work and cares a lot about her friends, even if she doesn't show it.
Wonhan Retail's organizational innovation director is efficient and composed—a no-nonsense man who strictly follows his principles. His rigid discipline and sharp focus make him an intimidating figure, known for getting things done with impressive speed and precision. However, because of these traits, he seems a bit awkward at times as he isn't sure how to deal with unusual things, like Mi-kyung's unpredictable behavior.
Mi-kyung's best friend. She is a web novel writer. She loves to ship Mi-kyung and Baek-ho constantly and tease her about it. She's subtly possessive over Kim Hwan-gyeong, getting angry when other girls interact or flirt with him. Despite this, she won't admit that she's interested in him, displaying a "tsundere" personality.
Shin Hyun-seung as Kim Hwan-gyeong
Mi-kyung's younger brother. He confessed to Lee Ong-ju several times in the past, but got rejected. However, his feelings still linger.
On March 18, 2024, it was reported that Kang Tae-oh, who was about to be discharged from his military service, was considering to star in the series. The next day, media reported that Lee Sun-bin would play the female lead, and that Kang had confirmed his appearance. On May 14, tvN officially confirmed the two actors' casting.
Release
The Potato Lab premiered on tvN on March 1, 2025, and aired every Saturday and Sunday at 21:20 (KST). It was also made available for streaming on Netflix in selected regions.
Viewership
The Potato Lab: South Korea viewers per episode (thousands)
Season
Episode number
Average
1
2
3
4
5
6
7
8
9
10
11
12
1
473
414
369
506
280
409
294
441
282
449
328
420
389
Source: Audience measurement performed nationwide by Nielsen Korea.
In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.
This drama airs on a cable channel/pay TV which normally has a relatively smaller audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC, and EBS).
References
↑감자연구소 OST[The Potato Lab]. Bugs (in Korean). Genie Music, Stone Music Entertainment. Stone Music Entertainment, CJ ENM STUDIOS. April 7, 2025. Archived from the original on April 7, 2025. Retrieved April 7, 2025.
↑감자연구소[The Potato Lab]. CJ ENM (in Korean). Archived from the original on April 16, 2025. Retrieved March 5, 2025.
↑Kim, Hyun-rok (December 20, 2024). 남현우, 디퍼런트컴퍼니 전속계약...'감자연구소' 합류[공식][Official: Nam Hyun-woo stars in 'The Potato Lab' after signging exclusive contract with a Different Company]. SPOTV News (in Korean). Archived from the original on March 2, 2025. Retrieved January 21, 2025– via Naver.
12Choi, Yi-jung (May 14, 2024). 강태오X이선빈, 로코 '감자연구소' 첫 만남 호흡... '병맛 커플' 탄생[Birth of the crazy couple... Kang Tae-oh and Lee Sun-bin's first chemistry meeting in romantic comedy 'The Potato Lab']. OSEN (in Korean). Archived from the original on March 2, 2025. Retrieved January 21, 2025– via Naver.
↑Lee, Seung-hoon (March 19, 2024). [단독]이선빈, '전역' 강태오와 로코 호흡... '감자연구소' 주인공[Exclusive: Lee Sun-bin stars in romantic comedy drama 'The Potato Lab' with Kang Tae-oh, who was discharged from the military...]. Star News (in Korean). Archived from the original on January 26, 2025. Retrieved January 21, 2025– via Naver.
↑Choi, Yi-jung (March 19, 2024). [단독] '오늘 전역' 강태오, 휴식없이 차기작 '감자연구소' 돌입..로코킹 노린다 (종합)[Exclusive: Kang Tae-oh, who was discharged from the military today, is rushing into his next work – 'The Potato Lab' – without resting.. He aims to be the romantic comedy king (Comprehensive)]. OSEN (in Korean). Archived from the original on January 21, 2025. Retrieved January 21, 2025– via Naver.