He was born in Pohang, South Korea. He has an older sister.

Yeosang was the sixth member to join KQ Entertainment. Yeosang is a former Big Hit trainee. He indeed received offers from 6 different companies before choosing KQ Entertainment. Hongjoong said that the team leader made a lot of effort to make Yeosang join the agency.

His loves playing online game, eating chicken and skateboarding. Yeosang’s microphone color is red because it’s is favorite colour.

His role models are BTS‘ V and NCT‘s Taeyong.