The single album features two distinct tracks that highlight YooJung’s vocal range and the group's signature sound:
: The project was overseen by Jaden Jung , known for his work with LOONA, which is reflected in the album's art-pop aesthetic. YooJung (OnlyOneOf) UndergrOund IdOl #1 zip
The project focuses on the "hidden" or "underground" feelings of idols who typically shine in the spotlight. The single album features two distinct tracks that