Lucy continues the excitement of her comeback by releasing the music video teaser for the second title track, "Urgent (Feat. Wonstein)." On the 4th, Lucy unveiled the double title track music video teaser for her 7th mini-album, "Sun," on her official YouTube channel. This teaser hints at another narrative contained in the new album, raising fans' anticipation.

The released music video teaser features the three actors who appeared in the previous work, "What About Love," returning once again. They live by compromising in their respective realities, growing weary of the repetitive daily life, but ultimately run to break free from "Sun." This turning point, though brief, suggests the flow of emotions and a completed narrative in the intense teaser.

The music video was directed by 815 Video, which has collaborated with world-renowned K-pop artists such as BLACKPINK, TWICE, and IU. 815 Video richly completes Lucy's unique musical narrative by expressing the rhythmic elements of "Urgent (Feat. Wonstein)" through delicate visuals and detailed storytelling.

"Urgent (Feat. Wonstein)" is a track that newly combines the sensibilities of jazz and R&B introduced by Lucy. Jazz piano and gypsy violin create an urban yet jazzy atmosphere, while rhythmic instrumentation and lush strings add depth to the sound. This song well showcases Lucy's experimental musicality.

Lucy's 7th mini-album, "Sun," is an album that captures various undefinable aspects of love. It includes a total of four tracks, featuring the double title tracks "Urgent (Feat. Wonstein)" and "What About Love," as well as "EIO" and "Eternal Love." Members Jo Wonsang and Shin Yechan demonstrated their musical abilities by contributing to the song credits.

From the 7th to the 9th, Lucy will hold her 8th concert, "Lucid Line," at the Ticketlink Live Arena in Olympic Park, Songpa-gu, Seoul, for three days. The concert sold out all seats. Following this, on the 15th, she is scheduled to perform at the 2nd Korea Grand Music Awards (KGMA) held at Inspire Arena in Incheon.