«Within the game but not a player/gamer.» Having an ordinary life, a young man named Lock unintentionally transferred in another world — a world inside a game, «Magicia-WOG (World of Magic)». Trapped within, he tried to live inside. However, he suddenly became a wanted target by everyone. As a result, he was forced to hide in the shadows. Once killed, he will be dead. But his enemies were basically immortals. Having a chance to slay one, he found his goal. If he wanted to escape from the game, he would have to kill his enemies.