Yuusuke Yotsuya and his companions are once again drawn into the mystical realm of the Game Master's quests. Together with the new member, Keita Torii, they reconnect with Kahabell, still oblivious to the consequences of their actions. After a heartfelt goodbye to Kahabell, the team embarks on a seemingly straightforward mission—to offer a Jiffon Buffalo at Vaikdamnia on Jiffon Island. However, their journey takes an unexpected turn as they discover that the island is under threat from orcs who strike a sinister deal with the locals: sparing them in exchange for buffalo. With the festival at risk due to the dwindling buffalo population, the team faces a daunting choice: eliminate the orc threat to save the islanders and ensure the festival's continuation.