After being informed by her son-in-law about her daughter's affair, Ryo Fukutomi is overwhelmed by deep guilt. Having once experienced divorce due to her own infidelity, her daughter's involvement with another man feels like a betrayal of her own bloodline. Feeling responsible, she apologizes to her daughter—and as a form of atonement, reaches toward her son-in-law's crotch. With tensions mounting between her and her daughter, she offers herself in her daughter's place, relieving him in the way she once knew best. This becomes Ryo's personal resolution, a twisted act of redemption.