Group Wanna One Ong Seong-wu is taking a step forward at the Fan signing event held at Sejong, Gunja-dong, Gwangjin-gu, Seoul on the afternoon of the 11th. November 11, 2018.
About Ong Seong-wu
Ong Seong-wu is a South Korean singer and actor. He is known for his participation in the survival reality show Produce 101 Season 2, where he finished in fifth place, and is a former member of the show's derivative boy group Wanna One.
 Wikipedia