Welcome to Underground Sky!This is a visual novel with elements of an adventure quest and text RPG.You wake up in a subway car that seems to be hanging in emptiness.Trying to remember how you ended up here, you begin your unusual journey through the mysterious underground world, in search of a way out to the surface.The rules of the game are simple - you need to survive at any cost. During the game you will have to make choices that may have negative consequences and also affect the ending of the story.Good luck!