Yukito Sawatari is in search of a part time job during summer vacation. A high-paying one catches his eye - working as hired help at a mansion up in the mountains. He think he's the luckiest guy in the world, but the job will test his limits. He must live become the plaything of the sexually starved women who live there. Every day there's a new fetish to explore as he works tirelessly to service Maria, the mistress of the house, her daughters, Marika and Marisa, along with a host of other women. When the innocent Yuuna arrives, ready to take on similar activities as a "servant" in the mansion, Yukito is torn. Will Yukito allow this pure girl to be defiled by Maria and others, or will he help her escape?