Holy Sword “Excalibur”. The sword of the choice prepared to judge the king, aiming at the rule of Britain. Those who surpassed it were called “Arthur” and got a mighty power. However, it was not alone that pulled out Excalibur. Due to the massive creation of power, the legends are flooded, leading to distortion of history. In order to lead the history correctly, the six Arthur, the headmaster, Tekken, Wildcat, Excellency, Alchemy, Excursion, gets off to the past place “Britain”. Their mission is to knock out all Excalibur that distorts history. That number, about 1 million. This is a rebellion to the past. And it is a battle to protect the future (now).