Accompanied by his beloved Anna, Kazuma ventures to the remote Kawarazaki estate nestled in the mountains. The luxurious home projects an air of exclusivity, harboring residents who embrace eccentric pleasures. After encountering the specialized instruction of the maid Suzuka, he develops a compelling attraction that draws him toward Miyahara Maki. Their mutual pursuit ignites the beginning of a two-day descent into a realm of bizarre experiences.