SEE ALSO: Fans are urging Jung Hae In to unfollow Kim Soo Hyun

Mark was the center of attention during the interview, not only because he's the oldest in NCT Dream, but also because he's the only NCT member who has debuted in all three of NCT's units so far - NCT U, NCT 127, and NCT Dream. 

"I think I was lucky", was what Mark said about debuting in all three of the units. "Before, I used to be a maknae, but now, I'm the oldest hyung and I want to lead them," he added. 

About earning the nickname "pro debuter" from his fans, Mark shared, "The manager hyung told me about it. It's amazing that I've debuted three times, but saying I'm a 'pro debuter' seems exaggerated. Because its new and different every time, I always approach it with the same vitality. People around me ask if it's difficult, but I'm honored to have so many opportunities. Our team is unique in that there are no limitations, so I'm glad to be able to learn each time." 

Do you want to see Mark promoting in the next NCT unit?