The world has been designed by the so called '12 elements'. 12 months. 12 hours. 12 sectors, etc. Among them, there were 12 wisdoms that maintained peace and happiness throughout the world. The 12 creatures stand for the 12 respective wisdoms, each of which is called a 'Mascot' by humans. However, 'Muspel', the thirteenth mascot who hates humans puts the twelve mascots in cursed Masks and transforms them into Takers. The Mascots transformed into the Takers rule over humans, causing men to end up as slaves for Muspel. Now, the only hope for humans are the 'Four Guardians' who defend the four parts of the world = The East, West, South and North. These are The Blue Dragon, the lord of the eastern heaven; The White Tiger, the king of the western mountains; The Red Phoenix, the queen of the southern sky; and The Great Tortoise, the ruler of the northern sea. However, only when the four guardians are united with the human through the Masks can their true power be unleashed! Is it possible ...