Wanna One Yoon Ji-sung - Ha Sung-woon, 'Sweet Call'

Wanna One Yoon Ji-sung Ha Sung-woon has a photo time at the photo wall Event of Wanna One in the lobby of Sejong University Ocean Hall in Gwangjin-gu, Seoul on the afternoon of the 11th.

About Yoon Ji-sung

Yoon Ji-sung is a South Korean singer and actor. He is best known for finishing eighth in the second series of Produce 101 and is the former leader of South Korean boy group Wanna One.  Wikipedia