The EP serves as Hyuna's last solo release under P Nation following her departure from the company in August 2022.

The title track "Nabillera was written by Hyuna, Psy, and Dawn,[5] and is described as a "Latin-style" song with a light and minimal beat and tropical rhythm.

Its lyrics express a desire to become a butterfly, hoping to leave a mark in someone's memory.

"Picasso & Fernande Olivier" was described as an "attractive" hip hop song with an 808 bass beat that Hyuna participated in writing and composing.

The lyrics express Hyuna's desire for her lover to be by her side like Pablo Picasso and his muse, Fernande Olivier.

[19] On July 20, Hyuna held an online media showcase to commemorate the release of her album 'Nabillera' through the official YouTube channel and unveiled the stage for the title song 'Nabillera' for the first time.