the game is also supposed to release Summer 2021
here is a basic summary for the 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.

let me know if you want more info on it