All three girls are unimpressed with the walking dead and impending doom of the undead. The girls in fact seem to act the opposite, rather annoyed at the zombies surrounding them.
In the teasers all three girls are doing what they would normally do on a day to day basis. San does grocery shopping, Chaeyoung is in a cafe and Tzuyu has gone for a run.
Still teaser will follow the video teasers.