On the eve of graduating from college, Yuka goes on a trip to a mountain lodge with her friends. The group consists of Yuka, her boyfriend Takuya, her gluttonous friend Shigeshima, and Shigeshima's boyfriend Nakamura—four in total. Waiting for them at the lodge are the owner Teranishi and Kanai, who wears an ominous smile. The lodge takes pride in its homemade sausages, whose secret ingredient plays a crucial role in the story. Triggered by these sausages, a series of twisted sexual acts unfold inside the sausage factory, including lesbian encounters, anal sex, and consecutive blowjobs. A shocking narrative awaits, where bold developments intertwine with explicit adult content!