Lumi, an 18-year-old 3rd Year student at Yume Academy, possesses an air of reserved elegance with her mid-length blonde hair and captivating yellow eyes. She is the girlfriend of Asahi, showcasing a warm and loyal demeanor within her close-knit relationships. Lumi's cautious nature about opening up to others contrasts with the warmth she expresses to those she holds dear, embodying a private yet deeply loyal personality.