Subaru first joins The World hoping to meet people, though she knows nothing of the game and just wanders around for hours. She eventually meets Crim, who teaches her to stand up against other players, and the two form an unofficial player organization designed to bring order, the Crimson Knights. She eventually comes into contact with Tsukasa and forms a bond with him. Her real name is Mariko Misono, a paraplegic girl who spends so much time in The World because it is the only place where she can roam freely on her own. At the end of the series, she meets An Shouji, Tsukasa's player, and the two begin dating.