Case 00: The Cannibal Boy and the Physical Exorcism Series bundle are now on sale! Please take your chance!
This game is part of the Physical Exorcism Series. Some of the same characters appear, but the stories in the series is independent of each other and can be enjoyed separately.
https://store.steampowered.com/app/1391450/
https://store.steampowered.com/bundle/15539/