You are Chillbi, the human hunter monster , who's always hungry for humans, but beware, they can also group together and hunt you!
The object of the game is to eat humans, grow and be stronger.
A famous painting has dissapear from a museum, as a detective, you're hired to solve the mistery by interrogating powerful (regarding demon powers) mobsters and find out what happened to the pain
Wave energy, the main energy source of the universe.
X years ago, some beings with unique abilities appeared. Capable of bending and creating big amounts of waves, they were called “Wave Makers”.