Actor Lee Sung-min has captured the attention of fans with his noticeably slimmer appearance after undergoing a rigorous weight loss for his upcoming project.

On July 13, fashion magazine DAZED KOREA surprised fans by releasing a behind-the-scenes video from Lee Sung-min's photoshoot on their official social media channels.

The video featured the main cast of the Netflix series "Teach You a Lesson" gathered for the shoot, but Lee Sung-min's transformed visuals stood out.

In the video, Lee Sung-min showcased a youthful and trendy style, pairing a refreshing denim shirt with pants, and even perfectly pulled off a bold skirt-shorts look.

Most striking was his physical transformation. Lee Sung-min displayed a noticeably slimmer physique, a sharp jawline, and more defined facial features.

This dramatic change is the result of his professional dedication. Back in April, Lee Sung-min appeared on the popular web variety show "Pinggyego" on the YouTube channel "DdeunDdeun" and revealed that he had lost 10kg for the filming of the movie "Ode to My Father 2".

At the time, Yu Jae-seok and Jee Seokjin, who worked with him on the "Pinggyego" spin-off travel content "Punghyanggo", were shocked by his appearance and asked with concern, "Why have you lost so much weight?" Lee Sung-min briefly replied, "Because I have to work," demonstrating his exceptional sense of responsibility and determination.

Meanwhile, the movie "Ode to My Father 2", for which Lee Sung-min is undergoing extreme weight loss, is the sequel to the 2014 hit "Ode to My Father", which drew 14 million viewers. In the film, Lee Sung-min plays the protagonist 'Sung-min', a former miner who worked in Germany, and will be acting alongside actors such as Kang Ha-neul and Moon Sori. 

(SBS Entertainment News | Kang Sun-ae)