In the year 20XX, the Girls' Frontline server has been shut down for maintenance. Dio Brando, a member of the Dio Brando Family, is one of the few people who know how to play the game. He spends his days playing the game, waiting for the server to come back online. With the exception of the main storyline, the girls play F-Rating games, in which the players must attempt to score as many Fs as possible. The main storyline involves an assassination attempt on the president. The players must help the president, and thwart the assassination attempt. All the while, the war between the two factions rages on. Dio Brando is known for his impeccable attention to detail, and for creating characters with realistic goals and ambitions. He takes great pride in his work, and receives little recognition for it. He has a strong desire to be the best writer the game has ever seen. One day, a man with a gun storms the Girls' Frontline server and opens fire, killing many people, and staff included. Dio is the only one who is not hit by a single bullet. Everyone else is dead, and the gunman specifically targets Dio. He is determined to kill Dio at any cost. Dio is skilled in the use of many different types of weapons, and he is an excellent shot. However, the gunman has equally as much experience with weapons, and is a good shot as well. The two of them go down a long, dark hallway, past several rooms with bizarre and grotesque paintings, to a room with a pool table. This is another one of Dio's favorite pastimes. He is very good at the pool, but the two men know little of the game. Should the two of them play pool, Dio will most likely win.