The majestic green unsullied by the blue sea--Yurashima. A student attending Watatsumi High, Randou Furukata is entrenched in his school life--until he's involved in a puzzling and gruesome murder. Randou is chosen as a "Knocker-Up," those who can travel between dreams and reality, being thrust into a nightmare he cannot wake up from.
When Ryuuhei Oda was in elementary school, he admired his kind older brother. Ryuuhei, who witnessed the mysterious death of his brother, is now a cheerful high schooler who doesn't let the lurking nightmare surrounding faze him. One day, while kickboxing, he's bitten by a mysterious creature named Tris and has an unusual dream.
He confronts his twisted desires as rumored "Drops" fly through the streets. What does he see beyond that?