The album included their singles "Be the Naked", "Summer Vacation" and "Hide and Seek/Sunset Refrain".

[3] The album was released in three separate editions: a standard CD containing thirteen musical tracks;[4] a type A CD+DVD edition, which housed music videos for all the videos from the singles, along with the previously unreleased "Hide and Seek";[5] and a type B 2CD edition that contained thirteen tracks on the first disc, a special radio show hosted by the group, a remix of "Summer Vacation", a live version of "Say Good-bye Say Hello" and a special booklet.

As a special promotion, when buyers pre-ordered the album at various CD shops nationwide, they could receive a clear file folder.

The company also collaborated with Amazon Japan for several promotions, including a DECA jacket with the pattern of either the A or B special edition.

~BREAKTHROUGH~), which was held in April 2020, those who purchased a CD, DVD or Blu-ray received a Singularity-themed poster.

[18] As a special promotion, when buyers pre-ordered the album at various CD shops nationwide, they could receive a clear file folder.

The company also collaborated with Amazon Japan where buyers would receive a DECA jacket with the pattern of either the A or B special edition cover.

~Breakthrough~, which will be held in April 2020, those who purchase a music CD or DVD/Blu-ray will receive a Singularity-themed poster.