There is a strange epidemic running rampant at the local inpatient hospital. For some reason every night the nurses are feeling an uncontrollable urge. They have no choice but to satisfy it with the patients, the doctors, and even each other. The new resident doctor has his own itch to scratch, as well as a suspicion that someone is behind this impromptu sex ring.

The miracle happens again... in another country - 
The son of an Englishman and a Japanese woman, our main character is Shin'ya. Having grown up in his father's native land, he wanted to visit the homeland of his mother, who died when he was young. White snow covers the town of Kuramachi. His other hometown, the last trace of his mother. That is where his father and mother met and were married. And the time comes when Shin'ya's wish is granted. His aunt Miyu says she'll look after him at her church.. 
In his mother's hometown, Shin'ya injures his leg and goes to a clinic. As Shin'ya stays in the small, snow-covered town, waiting for his leg to heal, he encounters various young women. His encounter with the girl in the clinic who likes to read, Narumi, becomes one he'll never forget... 
(Source: AnimeNfo)

* Based on a game by ELF 
A sincere older step-sister and a curious younger step-sister are doomed to become love slaves. 
One day, a house wife named Yukie has a traffic accident. She is ordered to pay a large settlement to the other party, Taketo, the son of the owner/president of Nogawa Industries. Unable to make the settlement payment, Yukie allows Taketo to have her sexually. At the same time, Takato's father, Nogawa, approaches Yukie's step-daughter, Rumi, and blackmails her. His evil scheme even reaches for Tomoko, Yukie's younger step-sister. 
(Source: AnimeNfo)

Yusaku is heading home for the first time in eight years. He is a medical student about to take on a summer internship in the country working at his uncle's clinic. While on the train, he becomes smitten with a young woman sitting across from him, but is unable to summon the courage to speak to her. When he arrives in his hometown, he is reunited with friends from his childhood, and get introduced to gorgeous nurses, patients, and mysterious young girls. It is only a matter of time before Yusaku runs into the beautiful woman he saw on the train. 
(Source: AniDB)

Silky’s