D Cide Traumerei

Anime
The stage is Shibuya.

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?

Game
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.

Official
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Other Sources
MAL