Park Ji-hoon, appeared as the 8-year-old Jumong in a drama.

The tvN variety show 'You Quiz on the Block' will feature Professor Jang Hyung-woo, who lost 38kg; Heo Ga-yoon, who found happiness in Bali; snowboard medalist Kim Sang-gyeom; and Park Ji-hoon from the movie 'King and the Clown'.

Professor Jang Hyung-woo will share his journey with being overweight since the age of 8 and his dieting experiences, based on his journey of losing 38kg from 118kg. He will share the A to Z of dieting, recounting his struggles with various diet attempts and yo-yo effects, and the story of undergoing gastric sleeve surgery due to deteriorating health.

Heo Ga-yoon will talk about her recent life in Bali, the grief over her brother's sudden passing, and the subsequent change in her perspective on life. She will also open up about her honest feelings, including experiencing school bullying during her trainee days, the frustrations during her transition to acting after the disbandment of 4Minute, and her 7-year struggle with binge eating disorder and obsessive-compulsive disorder, before sharing about her new life in Bali.

Kim Sang-gyeom will share the emotional moment of winning a silver medal after his fourth attempt, the hardships he faced after being cut from the national team, and his intense efforts, including working manual labor, to achieve his dream despite financial difficulties. The story of his father and coach's devoted support hidden behind the medal, as well as his cheerful couple chemistry with his wife, will also be revealed.

Park Ji-hoon will tell the diverse story of his journey from being the 'winking boy' idol to receiving praise for his reincarnation as 'Danjong' in the movie 'King and the Clown'. He will reveal the secret of his extreme diet to portray Danjong's exile, behind-the-scenes stories of famous scenes, filming anecdotes with Yoo Hae-jin, and his story from his child actor debut in 'Jumong' at the age of 8, through his activities with Wanna One, to his transformation into an actor.