In the first volume of the .hack//Liminality series, a Japanese school girl Mai Minase and her friend Tomonari Kasumi became unconscious from playing an online computer game and was rushed to the hospital. Fortunately, Mai Minase regained consciousness, but Tomonari remains in a comatose state. Later after the incident, Mai is one day on her way to school until she ran into a man named Junichiro Tokuoka who claims to know what caused her friend Tomonari to be in a coma. At that time, Mai doesn't know or believes him. Later, Mai had no choice but to believe Tokuoka and tries to find out how the popular online game, "The World" did this to Tomonari. Can Mai and Tokuoka find out clues about "The World" and wake Tomonari Kasumi up out of his coma?

In the second volume of the .hack//Liminality series, Yuki Aihara was a school girl who one day went to a school theater and while watching a movie, the words "The World" suddenly appeared on the big screen and suddenly, the entire town of Yokohama was blacked out due to power shutting off. People are desparately trying to escape and Yuki tries to get out as well. Suddenly, a mysterious woman who claims that she happens to work at the school theater helps Yuki find the way out of the theater. Can Yuki escape from the black out crisis and join up with Junichiro Tokuoka to get the answers about "The World"?

In the third volume of the .hack//Liminality series, Junichiro Tokuoka travels to Tokyo, Japan to talk with a girl named Kyoko Tohno about the mysteries of "The World", an online computer game that put some people in a comatose state. At the same time, Kyoko has received a strange cell phone e-mail from Helba. They continue to discuss and are trying to get clues about everything related to "The World". They later meet a mysterious man named Sato Ichiro and speak with him to get answers. Will Tokuoka and the three girls Mai, Yuki, and Kyoko that he cooperates with be able to find the mysteries and clues of "The World" and save the comatose victims?