The boy Yotsuya saved in the Chinese restaurant, Torii Keita, turns out to be the fifth player. They're sent to the alternate world again, and after receiving the fifth quest, they head for Cortonel to track down some leads. There they find Kahvel, who is now a mother. The party is shocked to learn that 15 years have passed since their fourth quest, but that isn't the only thing that's changed in this world.

The current quest is to make Jiffon Island's harvest festival a success, but the festival can't be held because some orcs that strayed onto the island have taken over all of the Buffo that are traditionally offered as sacrifices. On top of that, the increasing number of orcs threatens the islanders' very lives. With the festival date only 11 days away, Yotsuya begins leveling up to raise his rank so he can help fight them, and his job changes to Blacksmith.