After the death of his sister, Issac has turned to RPGs to shelter his deep depression. Hidden behind his username: Grimm, Issac stalks the shadows of every rpg he's played, until he buys the first revolutionary full-dive game, Sword Art Online. His actions inside the game begin to reflect his true self. A thieving, murdering, fiend. But like most SAO players, he's in this to live on and return to the real world. But the will to leave the lawless videogame slowly starts to drain from him.