Sayako was abused by her mother as a young child. She eventually moved into a foster care facility because of the abuse and has lived there ever since. She's now a senior in high school. After Sayako graduates from high school she hopes to attend a ballet school, but Sayako can't count on her...
Ayame finds herself often in a numb state. She suffers from a disease which causes her to feel sleepy regardless of the time. Ayame also has a reoccurring daydream. One day, Ayame daydreams that her younger sister Hiiragi dies. This time around she'll have to fight her own dreams.