Kim Min-guk (김민국), the eldest son of renowned Korean host Kim Sung-joo (김성주), gained widespread popularity in 2013 while appearing on the MBC reality show “Dad! Where Are We Going?” with his father and younger brother, Kim Min-yul. Known for his cute, sensitive, yet mature 'big brother' image, he became a beloved child star many viewers watched grow up.

Recently, Kim Min-guk was spotted in Switzerland alongside Lee Su-hyun (이수현), a member of the duo AKMU (악뮤). This unexpected pairing surprised many netizens, as the two had no known public interactions before. Their joint trip to Switzerland left fans wondering, "How did they even meet?"
It turns out the trip was orchestrated by YouTuber Lee Seung-guk (이승국). Lee Seung-guk, a devoted fan of Lee Su-hyun, frequently introduces like-minded friends to each other. Over time, Lee Su-hyun, Kim Min-guk, and cellist Chan-young (찬영) grew close, forming a tight-knit group of friends akin to 'four siblings' who then embarked on their Swiss adventure together.
Interestingly, their first meeting involved a humorous mishap. When Lee Seung-guk arranged for Kim Min-guk and Lee Su-hyun to meet, Kim Min-guk, a novice driver, got lost, causing Lee Su-hyun to wait for over two hours at their designated meeting spot.
While such a long wait might typically leave a bad first impression, Lee Su-hyun was not upset. Instead, she was touched by Kim Min-guk's genuine and innocent demeanor as he repeatedly apologized, even squatting on the ground in embarrassment and not knowing what to do. His sincerity broke down her initial reservations, forging a deep friendship between them.

In recently released videos of their Swiss trip, the four friends are seen strolling amidst beautiful lakes and mountains, chatting and sharing life updates with natural and heartwarming interactions. With one friend setting the mood with music and another entertaining with witty remarks, their mutual care and companionship resonated with many netizens, who described the scenes as incredibly 'healing'.
Kim Min-guk, especially, who was beloved from “Dad! Where Are We Going?”, has grown into an adult. His more mature appearance and composed demeanor during the trip led many viewers who watched him grow up to exclaim, "Time really flies so fast."
Netizens also commented that beyond the stunning Swiss scenery, the trip beautifully showcased the sincere and pure bond of friendship, with the warm interactions receiving overwhelmingly positive feedback.
