One day, Saeko Hiiragi is overcome with distress when her boss brings her drunken husband home. Unable to resist deep down, Saeko succumbs to her boss's advances right beside her husband. That night, she is taken by her boss in front of her husband. A few days later, the boss visits again and forcefully makes her perform a blowjob at the front door, completely breaking her mentally. The secret affair between the two spirals into a situation that can no longer be ignored.