Kaoru dreamily gazes from her bedroom window each morning just before dawn. She can see a stretch of the beach in front of her parent's house on a hill in Kamakura but focuses upon the activity at the bus stop where Koji and his two best friends meet before going surfing. The appearance of the sun causes her to lowers the blinds and go to sleep for she suffers from Xeroderma Pigmentosum (XP) and exposure to the sun's rays has had the potential to kill her. At night, she walks to the train station, plays her guitar and sings songs she has written, commonly returning home just a few minutes before it starts getting light. One morning, she is at the bus stop singing when Koji arrives.