[Welcome to INFINITE WORLD: Purify Game][ Seven great sins, also called great sins. Before Final Judgment Day, The sea wiped it all out.] The beginning is that hundreds of thousands of people are trapped in a game system and have to find a way to survive. "It" was conceived at the same time that the universe was formed. The castle in the Big Bang. For more than 13 billion years, "It" has been an audience. Patience, quietly watching the growth and growth of all things. This exists throughout the universe. [GAME START!]

After the apocalypse took place in real life, the only person left in the world was Memphis. But facing too many zombies makes him exhausted, and then he dies. He then came back to life when he was five years old. He spent more than nine years training to fight zombies later. When Memphis was 14, zombie games appeared again. He's logged into the game, gathering resources to be powerful. This time Memphis was determined to fight the zombies with all her might. He's looking forward to the day when the zombie game synchronizes with the real world. That day is when the world ends, and he will fight again!