Cruel incest with stepmother; taboo office sex in a family-run business run by the same clan; Mizuki Aono; NGOD-331

The company, located in a city in the Kanto region, is a so-called "family business" run by the same clan. The father is the president, the sons are the employees, and the stepmother is a director; the whole family works hard every day. However, the eldest son consistently makes business mistakes and is scolded by his father daily, both at work and at home. The stepmother, with her alluring charm, gently encourages the frustrated eldest son. This ultimately becomes the catalyst for a taboo "incestuous office"...