Sora was lying in front of a hospital. He was seriously injured, and when he was about to die, a nurse, Yagami Yuu, helped him. He was sent into an emergency ward, and he met a beautiful woman, Mikage Reika. She was a director of the hospital, and she asked him to become a test subject. Because he didn't have any relatives, he accepted it. Then, Yagami Yuu was supposed to take care of him. Since that day, his fate had changed a lot. [Edited from [url=http://www.animenfo.com/animetitle,1885,ydbwhu,yakin_byoutou_s.html]AnimeNFO[/url]]

Hirasaka Ryuuji works as a gynecologist in a small hospital, and at first glance is a simple man. However, underneath his mask and concealed madness is a man who lusts after women to violate their bodies and use them as experiments. One day, he received a request to work part-time as a doctor from St. Juliana Hospital, a prestigious and well-known private hospital. There he encountered his classmate from his days as a medical student, Jinguuji Narumi. Eight years ago, Ryuuji attacked her in a laboratory, performing experiments on her body. Ryuuji, fearing this former incident being made public, receives a surprising request from Narumi. Four nurses of the highest quality for you to experiment with to your heart's content...although suspicious and doubtful of Narumi initally, the animal desire that raged within him once before awakens, and Ryuuji makes his decision... [Translated from [url=http://cl3.getchu.com/soft.phtml?id=341245]Getchu[/url]]

Just before the summer holiday.... Mana totally forgets to apply to a hands-on training course. Almost all of the courses are already closed. When she is at a loss for what to do, one beautiful woman offers her a hands-on training course that is still available. She accepts it without checking what she is going to do.... Her course is at a sanatorium. A patient whom she takes charge of is Wataru. His days are numbered and he suffers mental illness as well. Mana works hard for him but she gets unstable mentally day by day. At last, she decides to leave the sanatorium... but it stimulates his crooked sexual desire and Mana becomes his sex slave.... [From [url=https://web.archive.org/web/20090406193250/http://www.erogeshop.com/product_info.php/products_id/1005201]ErogeShop[/url]]

The protagonist, Tosatsu Koichi, is assigned as a lecturer at the St. Cadenza Nursing School, a nursing school attached to a medical university. Whether it be because of his appearance or personality, Tosatsu is disliked by the students, who call him "a person who is not very successful" and "somehow creepy". He himself thought he was being careful enough not to look suspicious to the public, but... One day, he accidentally found a paper in the back of the university's reference room, which was... "Female Body Experiment Report: Subject:Jinguji Narumi. Written by Hirasaka Ryuji".It was a report that seemed to have been written by a student who had enrolled in this medical university in the past. Tosatsu read it and was shocked. He felt an excitement and a strong urge that he had never felt before. "I want to try female body experiments too..." Eventually, he could no longer suppress the urge... and Tosatsu decided to throw away everything and carry out a crazy experiment. "First, I must decide on the prey, the test subject, necessary for this experiment..." Tosatsu muttered, but in his mind, a beautiful girl had already been chosen. "Nanase Ren", a woman who combined purity and cuteness, and was one of the most beautiful women in the nursing school... "If I'm going to do it, I've got to use the best material... and the best experiment... and the one who will defile her first... will be me!" The man took action. Betting everything he had left of his life... [Translated from [url=https://web.archive.org/web/20130213065109/http://www.mink.co.jp/product/violet/ren/plo.htm]the official site[/url]]