Sumire, a married woman who had been in a relationship with her serious and kind husband since college days, found happiness in the everyday life of their marriage. However, her life took a drastic turn due to her husband's superior. While her husband was away, his superior used his position to forcefully insert his engorged, vein-popping penis into Sumire. Sumire, who had never experienced such pleasure with her husband, gradually lost the strength to resist and began to seek out pleasure and his penis on her own.
