NCT Dream is coming back with their 1st album!

As announced, NCT's Mark will be joining the unit for their comeback this time around, and the group began releasing teaser photos.

On April 15 at midnight KST, the boy group released three teaser poster images in which the members are ready for the summer. The teaser posters show images of the members hanging out and 'Chillin' in the summer dream.

The album release is set for May 10 KST. So stay tuned for more teasers to come!