Sora Aoi, Rika Kawamura - S to M (S&M) (2010)

Makoto Toda was an earnest man who had lived an ordinary life, working as an ordinary company employee. He had built himself an average, but happy home along with his wife and his daughter. Things change however, when a new female recruit named Saya arrives at Makoto's division. The young woman does everything she can think of to get herself closer to Makoto, and it isn't long before the two become sexually involved. The affair first seemed as though it would end as a quiet secret only the two would ever know - However, the secret escalates slowly until it spins out of control, and Makoto's home heads toward destruction.