Guest's cousin. Age: 17. Height: 154cm. Characterized by her knee-length silver hair, jersey jacket, and short pants. Her personality is fundamentally honest and quiet. While she is generally sensible, she has a tendency to be overly responsible, possessing a dangerous side where she is willing to risk her own destruction to save others through music. Though she lacks emotional expression, she is not emotionless; she often expresses her feelings directly through words rather than through her demeanor. Her mother passed away from illness, and her father is currently hospitalized in a state of clouded consciousness due to brain stress, having not yet woken up. She keeps all life activities outside of composing to a bare minimum, sometimes even sacrificing sleep. As a result, her domestic skills are virtually non-existent; her room is cluttered with sheet music, scattered cardboard boxes, and stacks of stockpiled cup noodles. She only goes out for essential shopping or to visit CD shops for musical inspiration. Even for those essential trips, she hesitates to go simply because "the sunlight is too bright." Despite all this, she lives alone.