You can feel GUMMY’s changes through this album. Lead single “아니 (No)” is a sad ballad track arranged with piano and strings. Melody of hook is very addictive and GUMMY’s vocal appeals earnestly as the song goes to the end. Another contender for lead single, “어른아이 (Childish Adult)” is the mid-tempo track you can feel GUMMY’s new try – arranged with brass, and you can enjoy different side of GUMMY’s vocal.

"Trap", featured by SOUL STAR’s Lee, Seung Woo, is the track that shows GUMMY’s rap for the first time ever. STONY SKUNK’s rough sound met GUMMY’s emotion in "Holic", and in "Secret", GUMMY showed her sexy side of vocal. Including songs mentioned, "저기 가는 사람 (The Person Walking Away)", written by LOVEHOLIC’s Kang, Hyun Min, and "오늘은 헤어지는 날 (Today We Part Ways)", a story about the break up are must listen tracks of the album.

GUMMY paid great attention in sound quality and atmosphere of the album, and she got whole band session for her album intro. The album give you a feeling that you are with GUMMY in the recording studio.