Serina, a sharp career-oriented OL. Serina, who was usually strong and strict with her subordinates, suddenly had her position reversed. Her actions angered a major client, resulting in damage to the company. To make her take responsibility, the major client and her company colleagues decided to punish Serina. Teased with neck strangulation → breast kneading → ass kneading → ass spanking, she falls into M with pleasure and humiliation. "Mr. Oshima, you should join too. If you want to continue doing business with us." The unscrupulous president of the client company joins the attack with her boss, using a rotor, vibrator, and electric massager to continue tormenting her with three people. A subordinate starts tearing her stockings and licking her feet. Pseudo-squirting climax with an electric massager on her panties & vibrator on her clit & fingering. From there, intense humiliation 4P. Serina falls deeper into the M swamp every time she cums. Forced to cum and creampied, she is confused and cries with the frustration and the pleasure of cumming so much. Serina transferred to the unscrupulous president's company. As an exclusive cum-trained maid secretary...