Lin Qi, a schizophrenic high school student who was daily being robbed of control of his toothbrush by seven personalities, was suddenly selected by the Holy Grail one day and became the seventh master of the Holy Grail Front of All Realms. In this world that combines anime rules such as Pirates, Naruto, and Spells, all superpowers are sealed into cards—the text of the rules on the card is the only law. To compete for rare cards, you must accept a fair duel presided over by a referee cat, and sneak attacks are strictly prohibited. The awakened Chaos God Body allows Lynch to equip mutually exclusive cards at the same time. The price is: every time the rule text is rewritten, a new personality will be split. Others' masters commanded their servants gracefully. Before the fight, he had to hold an internal meeting: "Who is going to win this round?" "It was you who lost last time!" "The referee is watching, stop arguing!" What's even more outrageous is that he discovered that the entire Holy Grail War itself was a giant rule loophole card - and the sub-personalities in his mind that disliked each other happened to be card rule deviants from different schools. He crossed off the names on his revenge list one by one, but when he held the Holy Grail in his hand, he realized that the only way to save this collapsed world was to reconcile all the personalities in his body. But first, he had to stop the rampaging third personality from turning the deck into a Landlord.