Lena Fox is portrayed as a striking, curvaceous woman with a glamorous, feminine appearance that contrasts with her shy and introverted personality. She has a cat-like face, blue eyes reflecting her mixed Korean-American heritage, and multicolored hair. Her style is casual and comfortable, fitting her lifestyle as a dedicated gamer.

Her background includes being bullied in high school for her appearance, with her friend Na Se-young supporting her during that time. She also experiences a dangerous encounter with a man, reinforcing her vulnerability. Despite these struggles, she forms relationships and navigates her environment while balancing her fears, shyness, and personal growth.