The actor Jung Jae-kwang, who gained attention as part of The Trauma Code: Heroes on Call, was originally not slender. It turns out he lost 40 kg and still walks 8 hours a day to maintain his figure, which has been creating buzz.

On the 4th, Jung Jae-kwang appeared on MBC's 'I Live Alone.' Jung Jae-kwang showed excitement and nervousness in his first entertainment grants.

In response, SHINee's Key called him a 'chameleon actor,' to which Jung Jae-kwang replied, 'That's why I take on various roles so people don’t recognize me. It’s a bit disappointing,' and laughed. Kokun remarked, 'I’m curious if he is bad or good in everyday life,' and Jeon Hyun-moo commented, 'He’s probably a nice person,' expressing his anticipation.

In a segment that showcased his daily life, Jung Jae-kwang started his day with morning prayers. He expressed gratitude, saying, 'I'm thankful for today.'

Notably, his strict diet management caught attention. He started his day with chicken breast. Regarding this, Jung Jae-kwang said, 'I once gained 8 kg in just a week. My highest weight was 110 kg,' surprising everyone.

He continued, 'I gained weight up to 105 kg while filming 'Crime City 2' and 'Not Out'; now I weigh 73 kg,' and everyone acknowledged that he manages his weight because he knows when he gains.

Park Na-rae noted, 'You look like you eat well, tilting your head at a 45-degree angle while eating,' sharply catching attention and eliciting laughter. Jeon Hyun-moo added, 'He sweats a lot, our team,' leading Park Na-rae to respond, 'He has all the qualifications for palm oil,' showing delight.

In particular, Jung Jae-kwang was an incessant 'walker.' He walked from Sin-geum-ho to Sin-dang-dong. He boasted, 'When I go for a walk, I walk for 8 hours,' showcasing his 'walker' persona. Surprised by Jung Jae-kwang's 7 km walk for about 2 hours across Dongho Bridge in the Han River, Park Na-rae joked, 'Can we really call this walking? Isn’t it going to end at Imjin-gak?'

Jung Jae-kwang stated, 'It has been 11 years since I started walking,' and said, 'At first, I walked 20 km to 24 km a day to lose weight. As I rapidly lost weight, I found joy in walking, and it became my own healing method.' He also mentioned, 'For me, the military was a very comfortable place,' shocking the Rainbow members.

[Photo] OSEN DB, broadcast capture

[OSEN]