Singer and actress Kim Sejeong has released the trailer video and online cover image for her first single album, "Solar System." This serves to heighten anticipation for her comeback. The trailer video, released on the 9th, succinctly captures the concept of the single album "Solar System." The online cover visually conveys the mood of this single through a calm and gentle sentiment.

The "Solar System" trailer video begins by sequentially showing various objects such as curtains, teacups and wine glasses, a notebook and pen, and sheet music being turned by gloved hands. These elements evoke traces of everyday life and delicately reveal the emotional texture of "Solar System." This stimulates curiosity about the emotional direction the song will portray.

The online cover features Kim Sejeong in a serene mood, foreshadowing the emotional concept that will be conveyed through the song. A small glass bottle and vintage props on a wooden desk create a quiet yet lyrical atmosphere. "Solar System" is a remake of the song of the same name originally released by singer Sung Si-kyung on his 7th album "First" in 2011, reinterpreted with Kim Sejeong's unique sensibility.

The original song's lingering emotion and impact will be expressed with a new texture in a different time and space. This single was produced by artist Jeok Jae, enhancing its completeness. Jeok Jae explained, "I wanted to express the emotion of this song like a monologue of an actor," adding, "I hope listeners feel as if they are breathing along with Kim Sejeong's rhythm."

Kim Sejeong is currently playing the role of Park Dal-i, a deputy officer, in the MBC drama "The Moon Flowing in Lee Gang," showcasing a strong yet lively charm. Additionally, as Sejabin Kang Yeon-wol, she delivers a poignant and heartrending appeal to viewers, demonstrating excellent acting versatility. While continuing various activities including dramas, variety shows, and OSTs, her first single album "Solar System" will be released on the 17th at 6 PM.