When a returning mercenary encounters a delicate and lovely young lady and a savage and tough stubborn man because of an inexplicable chest attack incident, a period of chaotic scenes and endless struggles in the cohabitation life begins. Unwilling to be lonely, the blood of the beasts entered one after another, an unparalleled ancient key is always by your side, the past is vivid in the dream, and there is an unforgettable ghostly figure, the online game dedicated to the ghost car of the soldier king sets sail.