In Planeptune, the CPUs of Gamindustri have signed a friendship treaty, banning the use of military force to take Shares. A month has passed since then. With the Planeptune's Shares declining shown through the power of the Sharicite due to idleness, Neptune decided to learn more about the duties of a CPU from Noire. Noire initially declined to help, but she later helped Neptune by getting her assigned to a monster extermination mission...