Toshio felt a persistent discomfort in his lower abdomen, realizing he could no longer delay relieving himself. He excused himself from his female colleagues, making his way to the restroom for a long-awaited respite. As he approached the door, he felt uneasy, recalling their missing coworker, Dazu, who had been absent for days. Upon sliding open the door, he was met with a horrifying sight: Dazu lay on the floor, stripped down to his boxers, and bound with red welts covering his body, the result of what seemed to be a leather whip. His face was taped shut, and he held a plastic funnel in his mouth, forced into submission as a human toilet and imprisoned within the very room he now occupied. Shocked, Toshio retreated, planning to alert management about this heinous act. However, before he could distance himself from the seemingly innocent Momoka, she revealed a taser, incapacitating him. They had acquired another human toilet, one they intended to train.