Mukau Nakamura

A young woman in a monotonous relationship finds her life unexpectedly disrupted by a mysterious man who shows up with a disturbing proposition involving a specific meal. Her subsequent journey leads her into a series of bizarre and increasingly sexual encounters across different regions of Japan, exploring themes of desire, loneliness, and culinary obsession in an unconventional, anthology-like structure.

The tragedy of a girl turned into a monster. A fantastic story of life, eros and love. (Filmaffinity)

At twenty Kaede is not thrilled about her apprentice job at a hair salon or her man or her town or anything much really. Then she hears that Takuya, a former crush, is back in town from Tokyo after several years. Kaede is not loyal so she is interested. Takuya, however, comes across as not. (mubi.com)

Several men and one woman have drifted to an uninhabited island. The only woman will try to survive by taking advantage of her own sexual attractiveness.