There is a fantasy world called as the Venux. The Venux is a different-dimension world from the Earth. One day, 'Master', who is only the god in the Venux, She recognized that devils were coming to destroy the Venux. But humans in the Venux didn't have enough power to defend the Venux from devils. However, she also knew the legend of the Venux. According to the legend of the Venux, there was a hero called as 'Ace of Protectors'. 'Ace of Protectors' will come back to the Venux to defend the Venux from devils. People in the Venux don't know who Ace of Protectors is. But, certainly, Ace of Protectors will come back soon...