Mo Tae-bum and fighter Kim Dong-hyun waged a fierce duel to defend their love.
The video was uploaded on March 19, 2026, to Channel A's official YouTube account, 'play Channel A'.
In this clip, Kim Dong-hyun and Mo Tae-bum dive into the tensions surrounding a couple. As a married senior, Kim offers Mo some hard-hitting, real-world advice that turns up the heat.
In the video, the two test each other's skills as fighters, keeping viewers on edge. Mo Tae-bum stepped into the match declaring, "I can do anything to protect Sarangjji!"
Episode 42 of 'Groom's Class' takes a deeper look at their dynamic and highlights a range of moments from the wedding-prep journey, raising fans' expectations. In particular, Sarangjji's surprise lunchbox event grabbed major attention.
More details and episodes about this installment can be found on the official channel.