Ranmaru has completely renewed its production team and is now releasing a full-scale drama series called "Lewd Female Teacher" that shows the process of a clergyman succumbing to pleasure and transforming into a lewd woman! Ruri, who is dating a male teacher colleague, is fed up with his poor technique. Meanwhile, she becomes captivated by the skilled technique of a middle-aged janitor, and the clergyman teacher repeatedly commits lewd acts on campus. The frustrated busty female teacher becomes the janitor's sex slave, and her sense of ethics collapses even in front of the students. Will Ruri continue to drown in pleasure like this...?