Feb 18, 2021 08:52 PM EST Jeong Jaehyun, better known as the NCT member Jaehyun, makes his acting debut as one of the lead characters on "Dear.M," set to stream on Rakuten Viki on Feb. 27. In the new teen K-Drama, Jaehyun is one of four high school friends who set out to uncover a mystery about their school, Seoyeon University. As they unravel the secrets of the University, they also start unraveling secrets about each other. "Campus life at Seoyeon University has always been relatively peaceful, but when an anonymous post pops up on the school's online community by a mysterious individual known as "M," the entire campus is flipped upside down," a teaser for the show reveals.