Please subscribe to see more from me, give this video a thumbs up if you enjoyed and comment down below what … Thank You for watching this video! He was the first member to be introduced to the group. Did you know that UP10TION 's WooShin or better known as Kim WooSeok has a pet dog named Dda Dda?. If you have been following the idol, you might have seen it through his reality program "WooSeok's UnBoxing". [4] He made his official debut in South Korea on September 11, 2015, with their first EP, Top Secret . DDa Dda's cute and fluffy appearance had won the hearts of the idol's fans, NIA. Kim first appeared in UP10TION's pre-debut program, "Masked Rookie King" in 2015. Kim Woo Seok has announced his official fandom name ahead of his solo debut.