Tsukasa is the main character of the series "The World." He's a young silver-haired boy wearing grey robes who wakes up in a dungeon in The World with no memory of why he's there or his identity. As time passes, he realizes that he's trapped within the game and can't log out while his physical body is in a coma. Initially, Tsukasa comes across as a cynical loner who tries to avoid others. However, as the story unfolds, he starts warming up to characters like Mimiru, Bear, Subaru, among others.