Group Yoon Ji-sung (left) and Kim Jae-hwan attend a performance of the "Kaseta 2018 Korea Music festival" held at Sky Dome in Gocheok, Seoul on the afternoon of the 1st and are having a conversation.
About Kim Jae-hwan
Kim Jae-hwan, better known by the monomyn Jaehwan, is a South Korean singer-songwriter, known for finishing fourth in Produce 101. He is a former member and main vocalist of South Korean boy group Wanna One.
 Wikipedia