[Edaily Starin Choi Hee-jae Reporter] Actor Kim Mu-yeol reunited with Yoo Jae-suk on "You Quiz on the Block" for the first time in two years, and his wife, actress Yoon Seung-ah, is also lending her support.

Episode 349 of tvN’s “You Quiz on the Block” (You Quiz), airing on the 1st, features Lee Yu-ju—the child who made headlines with a mere 5-second interview on Children’s Day and is said to be “on her third life”—four siblings who all served in the Army, Navy, and Air Force, and correctional officers Kim Ji-hoon and Lee Dong-ryeol from the CRPT (Crime Response Patrol Team)—the “Grim Reapers” of the Seoul Detention Center—as well as actor Kim Mu-yeol, who played Na Hwa-jin in the globally acclaimed hit series “True Education.”
Kim Mu-yeol, who captivated the world with the Netflix series “True Education” released last month, catches the eye by appearing in a suit reminiscent of his character, Na Hwa-jin, the supervisor of the Teacher Protection Bureau.
Two years ago, he became a “10-million-viewer actor” with the film “The Roundup 4” and appeared on “You Quiz.” This time, he shares his thoughts on rising to the status of a “global” action star after the series reached No. 1 in 45 countries and the Top 10 in 91 countries within just one week of its release.
Kim Mu-yeol also shares the story of how his social media followers surpassed 1 million following the film’s release. He adds his thoughts on receiving support from legendary professional wrestler John Cena and veteran actress Kim Hye-soo.

Viewers will also hear about his special bond with Heo Nam-jun—who recently gained popularity through the drama *Brave New World*—as well as the story of their lighthearted gym competition.
On this episode, Kim Mu-yeol reflects on his days as an unknown actor, struggling financially on an annual income of just 200,000 won. His story—from his childhood marked by a “red sticker” to living in a shantytown on a hillside while juggling countless part-time jobs, all while never giving up on his dream of becoming an actor—is sure to deeply move viewers.
In particular, Kim Mu-yeol’s wife, Yoon Seung-ah, will join the show to lend her support. The couple plans to share everything from the moment they embraced and shed tears upon hearing the news that *True Education* topped the global charts to the love story of their 17 years together.
Yoo Jae-suk is expected to add some laughs with a reaction that seems to be mindful of his own wife, Na Kyung-eun, as he witnesses the sweet side of the lovebird Kim Mu-yeol. In addition, viewers can look forward to seeing Kim Mu-yeol’s happy daily life with his son Won-i, as well as his performance of “I’m So Glad,” a song honed through over 100 celebratory performances, all in the upcoming broadcast.

Lee Yu-ju, the 11-year-old who caused a nationwide sensation with her Children’s Day news interview and is known as the “third-time-around-life” child, will meet Yoo Jae-suk. Lee Yu-ju, who garnered attention during the interview with her mature response, “I think this trip itself is a gift,” will appear wearing the “signature outfit” she wore at the time and share behind-the-scenes stories from the interview. The show will also reveal the backstory behind her mother’s surprising revelation—that she had asked her son to “buy her a Ninja X”—which had previously brought laughter to viewers.

The story of the four non-commissioned officer siblings—Kim Moon-jeong, Kim Moon-so, Kim Tae-hee, and Kim Jun-won—who are the first in the history of the armed forces to serve across the Army, Navy, and Air Force, adds to the intrigue. The twins—the first and second siblings—serve in the Army, the third in the Navy, and the youngest in the Air Force. Having gathered from across the country for their appearance on “You Quiz,” they not only share the story behind their reunion but also elicit laughter with their chaotic, real-life sibling chemistry. The four siblings explain how they all chose military careers at their father’s urging and express their deep respect for their grandfather, a Vietnam War veteran.

Viewers will also hear the stories of Kim Ji-hoon and Lee Dong-ryeol, correctional officers with the Mobile Patrol Team (CRPT) at Seoul Detention Center—the “Grim Reapers” who discipline unruly inmates. The two heighten the tension by revealing the tense, high-stakes daily life at Seoul Detention Center, a facility where the death penalty is a real possibility and which houses approximately 3,000 inmates. The show reveals not only their high-intensity on-site response duties—where each officer is responsible for hundreds of inmates and must handle unpredictable situations such as riots, self-harm, and disturbances—but also their voluntary training regimen as martial arts black belts.
“You Quiz” is a talk variety show hosted by Yoo Jae-suk that takes viewers on a journey through the lives of its guests. It airs at 8:45 p.m. on the 1st.