Kaoru Amane, 18 years old, did not attend school but instead sang herself away every night after dark at a square in front of a train station with a guitar in her hands. She led a lifestyle opposite the norm, sleeping during the day and active at night. Kaoru was suffering from XP (xeroderma pigmentosum), an illness, which also might be described as the allergy to the sun, and was not allowed to be exposed to sunlight. The only motivation in her life was singing, which also was the only connection to the outside world. One day, an incident drastically changes her life...
