Lim Young Woong is known for frequently exclaiming "Gun-Haeng (건행)!" (a condensed expression for "Be healthy and happy!" in Korean) instead of the typical greetings, and he recently shared a heartfelt message on his fan cafe.

In this post, a fan reached out, requesting him to encourage people, including their parents, to prioritize health check-ups. Lim Young Woong echoed the fan's sentiments, stating, "Everyone, please prioritize health check-ups when you can! I had mine a few days ago. Remember what I said? Taking charge of your health is crucial! Make sure to schedule those health check-ups!"

This post garnered attention, and a touching fan story soon unfolded. It revealed that a fan, influenced by Lim Young Woong's advice, underwent a health check-up and discovered cancer in its early stages.

On Lim Young Woong's official YouTube channel, a video titled 'Lim Young Woong's Space IM HERO TOUR 2023 in Seoul' was uploaded. The video featured segments from the talk show part of his '2023 IM HERO TOUR.' These segments were from his Seoul performances, which took place at the KSPO Dome from October 27 to November 5.

In one segment, a fan expressed hesitancy about getting a colonoscopy. Their main concern was the need to drink a medicine that tastes bad, which is used to cleanse the bowels before the exam. However, inspired by Lim Young Woong's encouragement, they opted for the check-up. Surprisingly, the once disagreeable medicine now tasted like honey water, making the examination more bearable. The colonoscopy revealed early-stage cancer and the fan underwent treatment and has fully recovered.

Expressing his relief, Lim Young Woong stated, "It's truly fortunate that cancer was detected early, leading to a successful treatment." During the concert, he inquired about the fan's well-being, saying, "Are you staying healthy?" Additionally, he didn't forget to cheer for "Gun-Haeng!" eliciting enthusiastic cheers from the audience.