Taiyou No Uta-Midnight Sun

Kaoru Amane [ also known as the japanese singer YUI ], is a 16 years old, who 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 from normal regular people, sleeping during the day and active at night. Kaoru was suffering from xeroderma pigmentosum (XP), 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... Kaoru returns home at 4:00 am, before sunrise. She stares out her bedroom window and sees a guy. It became her daily routine to always look out the window at 4:00AM and watch him. She grew to have a huge crush on him. Her goal was to confess to him before her death arrives. Will she be able to confess to him before her long forever sleep?