Seventeen's upcoming 9th mini-album, 'Attacca,' will be released this month as the boy group prepares for their comeback with more individual teaser images.

On October 8 at midnight KST, Seventeen released another set of teaser photos titled 'Op.2' version teaser images. In them, fans were able to grab a glimpse of the mature, sultry mood of Seventeen's upcoming 9th mini-album, 'Attacca' as Jeonghan, DK, Seungkwan, and Joshua spend a day at the ocean.

Stay tuned for even more of Seventeen's comeback teasers, all leading up to the group's full album release on October 22 at 12 AM EST.