In the year 2005, a computer virus called
Pluto Kiss completely shuts down and restricts the global internet network. In 2007, after extensive rescinding of the network, an online network game (MMORPG) called
The World is created and released.
Tsukasa suddenly awakens to find himself in
The World, being able to feel, smell, touch, see and hear everything as if he was really there. He attempts to log out but fails to do so. Being unable to what has happened before he awoke, he wanders around aimlessly to find answers. While doing so, system s, the
Scarlet Knights, suspect that he has been working with hackers, because of a tweaked cat-faced character he had been seen with. Tsukasa finds a magical item, that grants him the power to use the fearful
Guardian that will protect him from any harm. To Tsukasa's dismay it turns out that this guardian can not only easily defeat player characters in the game, but actually badly hurt players in the real world.
On his search for truth, Tsukasa encounters the friendly and ive
Subaru, leader of the Scarlet Knights. When a mythical item called the
Key of the Twilight turns out to be less of a myth, Tsukasa, questions whom he can really trust, and what the power to overcome
The World's system limitations actually entails...