JUNHEE, the leader and now soloist from the K-pop boy group A.C.E, is reinventing his musical identity with a bold step in his journey. 2025 was a notable year for him as he began his solo journey and established a new label, H&P Entertainment. His solo debut album, The First Day & Night, was released on September 12, 2025. The album comprises eight tracks, each documenting an emotion experienced at a specific time of day.