Group Wanna One arrived through the Incheon International Airport after the World Tour ('Wanna One World Tour ONE: THE WORLD') in Jakarta, Indonesia, on Thursday morning.
About Lai Kuan-lin
Lai Kuan-lin, also romanized as Lai Guanlin and better known mononymously as Guanlin, is a Taiwanese rapper, singer and actor based in South Korea and China.
 Wikipedia