[talk] Mark's basics are crazy

I saw you doing the Chikchik Boom Challenge with Changbin this time.

I think I watched it about 30 times without putting it down the moment I saw it.

He danced so cleanly and precisely, as if he had practiced that dance for two months.

They say that if you want to do the challenge, you have to memorize it right away, but if you have that level of skill,

I think the fundamentals are really solid