Stage name: Yun-Seo
Birth name: Choi Yun-Seo
Face claim: Xion ( ONEUS )
Birth date: November 28th 2008
Height: 5'11
Weight: 97
MBTI type: INFJ
Years of training 1yr and 3 months
Instagram: Yun_Seo_Sunnie
Positions: Lead dancer and main rapper
Representative emoji: ☀
Facts:
☆Yun-Seo was born in Seoul, South Korea
☆The members say he is very nice
☆He loves eating Strawberries
☆He is friends with NBIT’s DaeHyun
☆He can play the Harp and trombone
☆Yun-Seo has an older sister
☆His role model is Taemin ( SHINEE )