Izna, a South Korean girl group formed through the reality competition series "I-LAND 2," made their highly anticipated comeback with the digital single "SIGN" on March 31, 2025. The group’s first return since debut features a visually stunning music video that tells a cinematic narrative. While Yoon Jiyoon, who is on hiatus due to health issues, does not appear in the MV, the other members, including Mai, Bang Jeemin, Koko, Ryu Sarang, Choi Jungeun, Jeong Saebi, and Yoon Jiyoon, captivate fans with their impressive performances and visuals. The MV has garnered positive reactions, showcasing high production values and drawing comparisons to a movie.