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The Married Woman's Ritual

Sonya, a new wife, is left alone to stay at her husband's parents' house after he leaves for an unexpected work call.
Delighted by the old house, she changes into an unfamiliar yukata (Japanese bathrobe) and joins a sake party where she is introduced to the people of the village. Sonya is made to drink the village's special sake, and when she realizes it, she finds herself surrounded by naked men....
Sonya is gang-raped by her father-in-law and other men in the village while she is unconscious as part of the ritual to become a member of the village.
Before she knew it, Sonya began to feel the excitement of the men's foreign wives, who inserted and creampied her without any questions asked...