Makoto, who runs a small construction company, married his former subordinate Hiyori. Even in these times of economic recession, the company is doing well and is financially comfortable. However, the male employees are growing increasingly resentful of Makoto's strict attitude. However, there is a reason why they are still so dedicated to their work... The employees have been having sex with Hiyori almost every day, spending their days covered in sweat, dust, and filthy semen.