Lux before was very shy and introverted. Lux had trouble making friends and was very upset when nobody had accepted her. Due to being too kind, her bullies took advantage of her easily. However, when she is with Starcross, she is more laid back, cheerful, and loves to tease her younger brother around a lot. In the present, Lux is more rather playful and soft just like her 'Mother' (Dream) as she has adapted a lifestyle, though she can be quite the sadist at times.