- Dive Into You (whale) that is a b-side track in this album is a medium R&B pop song based on band sound with attractive emotional melody and speedy beat contrast.
- The new song 'ANL' is a synth pop song that makes you feel the unique refreshing charm of NCT DREAM.

Dive Into You (whale) is a medium R&B pop song based on attractive band sound with emotional melody and speedy beat contrast, and the lyrics express me and you relationship in comparison to whales and the sea, and as if a whale were swimming under the sea, vividly unraveled the—

heart of ‘i want i fall deeply into your arms’.

The new song "ANL" is a synth pop song that feels the unique refreshing charm of NCT DREAM, metaphorically portray the heart toward the opponent that keeps rising like the moon in the sky, every night.

"Irreplaceable (main character)” is a medium-tempo song with swing rhythm that combines vintage keyboard sounds, percussion instruments, and brass, and the lyrics that tell the importance of being you, who can't be substituted by anything else, doubles the excitement.