After her husband's sudden death, widow Reika is forced to live with her two brothers-in-law. Worried about making ends meet while watching them spend money on hostess clubs, she thinks, "If you're going to spend it there..." and takes off her clothes, beginning to handle their sexual needs herself. She barges in on one brother while he's bathing, stripping down to perform a sensual soapy body wash, progressing to rimming and handjob. With the other brother, she straddles him in a wide-legged cowgirl position, indulging in pleasure as she grinds and rides him. Her aggressive, seductive techniques and nightly sex leave the brothers drained—both financially and sexually. The sister-in-law's sex is far more satisfying than anything a hostess could offer...!