Update: ARTMS Intrigues With Mysterious New "X3" Teaser

Updated February 12 KST:

ARTMS has released a new “X3” teaser!

Check it out below:

Updated January 30 KST:

ARTMS has released a new “X2” teaser starring HeeJin!

Original Article:

ARTMS has unveiled a surprise teaser!

On January 18 at 12 a.m. KST, ARTMS released a teaser video entitled “X1.”

Stay tuned for updates!