The brother of her husband, who had been missing, suddenly visited. The married woman Erina feared her brother-in-law. However, her husband innocently rejoiced in the reunion with his brother. Then, an awful event occurred... Her brother-in-law took advantage of her husband's absence and forced himself on Erina. Despite being tormented by guilt, Erina began to notice herself being drawn to her brother-in-law's roughness.
