JUQ-938 _The wife told her husband that she did not want sex but she had sex with her husband's subordinates

Maki and Tetsugaku got married after falling in love for a while in the company. After getting married, the two continued to work together for 6 years. Tetsugaku's promotion to the position of Sales Manager seems smooth on the outside, but in reality he is troubled by his "sexless" marriage with Maki. Not long after, Maki had an affair with Tetsugaku's subordinate - Saji. Knowing this truth, Tetsugaku was so shocked that he suddenly died, never to return. He couldn't bear the shock of the affair and put an end to it himself, or was it because of Maki, or because of Saji...?