The last echo.

Something strange is happening in the world. There are rumors that mysterious creatures roam the cities. Some say that they look like humans, although they are not, others are terrifying monsters that will be the last thing you see before meeting them. The government advises to stock up on supplies and stay at home, not to open the door to anyone. Also, a curfew is now often announced, during which special units take to the streets to neutralize these creatures.