Saimin Ryoujoku Gakuen

Both very similar anime with hypnosis, slaves and big tits. 

Both have stories where hypnosis is used to change the girl's normal behaviour. 

Both involve school doctor's using hypnotic devices to make high school girls into sex slaves. 

Trust is something that must be earned and for an unknown stranger, distrust can easily be established in the eyes of the powerful and popular. However, imagine the potential of being enable to put those discrepancy aside and have the whole world bow on their knees, that would be a dream come true. 'Saimin Ryoujoku Gakuen' showcase a variety of females with different occupation and standards whereas 'Iinari! Saimin Kanojo' set its sight on a single female which is one of its downfall. However, the use to hypnosis techniques is sufficient enough to attract unwanted eyes.  

Both series have sad ending and in each of them you can find group of guys having lustful group sex with innocent females. What's important we won't find much BSDM or SM scenes in both titles, so if you liked Hakudaku no Mura give a Saimin Ryoujoku Gakuen go because either of them have similar way of showing sex scenes and their variety.