Nichkhun posted "Stay safe" on his instagram on the 26th.
In the photo, Nichkhun wore a cloth mask with a beard image on a white mask, attracting attention with a natural look and playful eyes.
The fans who saw it showed various reactions such as "Do not write your face", "I am doing well ...", "I was really deceived" and "It is a big hit".
On the other hand, 2PM, which Nichkhun belongs to, released J-pop album 'WITH ME AGAIN' last September.