The emotions frequently change within each track, expressing such things as the purity of love, sorrow, joy, sadness, thrill, anger, regret, excitement, and desperation.

[3] To embody the theme of expressing the various emotions of love, Lee Hi incorporates various music genres on the album, setting her voice against synth-pop and jazz melodies rather than the funky R&B soul of her previous songs.

[7] The song "Savior" featuring B.I was scheduled to be released as the second pre-release single alongside "Only", but was delayed due to record production issues per a statement from AOMG.

According to Kim, the album is pleasing to the ear as it encompasses a wide musical range but no song seems to pack a punch, including the lead single "Red Lipstick" and "Safety Zone".

She commented that "Although five years may feel like too long a wait for new music, Lee Hi makes it all worth it by producing a cohesive record that not only stays true to her roots, but one that allows her to explore genres that strengthen her identity as one of K-pop’s strongest vocalists.