Lee Hak Joo Is Lee Sun Bin's Ex-Boyfriend Who Still Has Feelings For Her In Upcoming Drama “The Potato Lab”

Feb 11, 2025

tvN’s new weekend drama “The Potato Lab” has released its first look at Lee Hak Joo in character!

“The Potato Lab” is a new romantic comedy drama set in a rural potato research institute. The story follows Kim Mi Kyeong (Lee Sun Bin), a researcher whose life revolves entirely around potatoes, and So Baek Ho (Kang Tae Oh), a cold and principled corporate director. When So Baek Ho unexpectedly enters Kim Mi Kyeong’s world, the two find themselves entangled in a whirlwind romance.

The newly released stills introduce Lee Hak Joo as Park Ki Se, the executive director of Wonhan Retail’s strategic planning office—and Kim Mi Kyeong’s ex-boyfriend.

Park Ki Se’s commanding presence is on full display in the images. His rise to an executive role at Wonhan Retail is credited to his polished appearance and sharp social skills, making him a master of workplace dynamics. However, despite his usual confidence, his uneasy expression hints at an unexpected shift in his life.

Another still captures Park Ki Se gazing at someone with deep emotion—his ex-girlfriend, Kim Mi Kyeong. His lingering feelings add intrigue to their past relationship. While he may be admired by many, to Kim Mi Kyeong, he remains an unfortunate connection. Their reunion at the research institute raises questions about how it will affect both Kim Mi Kyeong and So Baek Ho.

Lee Hak Joo shared his enthusiasm for the role, saying, “When I first read the script, I found it incredibly entertaining, and the characters were very appealing. Park Ki Se, in particular, has an irresistible charm—he’s frustrating yet captivating. That’s why I wanted to be part of ‘The Potato Lab.’” He added, “I worked hard to make Park Ki Se’s scenes enjoyable and satisfying for viewers. I spent a lot of time thinking about how to bring out the humor in certain moments.”