Question: how nct got into sm?
Answer: JaeHyun. He was cast for an audition in front of his school by an SM employee. ... 
TaeYong. He was street casted by an SM employee. ... 
DoYoung. DoYoung was casted when he participated in a singing contest! ... 
TaeIl. Same as DoYoung, TaeIl wooed a casting agent from SM just by participating in a singing contest. ... 
Ten. ... 
Mark. ... 
HanSol. ... 
Yuta.