Nao is a petite boy with a “problem”: although being small in physique, he is endowed with an unusual large penis. One day, his big sister Chiaki decides to have a party with her unsuspecting brother and her two friends to show them her brother’s penis. While the two girls – blonde Nagisa and black-haired Yukiko – make fun of Nao, who is visibly perplexed and overwhelmed by the situation, they become increasingly aroused by the sight of his large penis and soon can no longer contain themselves!

Elven Princess Iris, has been transferred to a human school as a goodwill ambassador to boost interaction between humans and demi-humans. She is an ideal honor student at school, but requires "aid" for the breeding of elves...

The lewd elves are a legendary race that wears lewd folk costumes on their lewd bodies... their men seem to have low sex drives though, so any men that happen to wander in... might get jumped!

Naoki Oikawa is an ordinary schoolboy who has discovered the pleasures of onanism for himself for some time and now, sometimes up to 10 times a day, enlists the help of the relevant magazines to quench his loins with permissive images of lightly pubescent girls. But one day, wondrous things happen because one of these magazines transfers him to a distant, strange realm, directly at the feet of three attractive girls: a swordswoman, a priestess, and an elf. They tell him his sperm has miraculous powers, the consumption of which gives them additional energy and enables them to stop the evil demon king. So from then on, Naoki does what a man must do…

Unstoppable gals get out of control! The sex life of an otaku student couple develops rapidly due to the influence of gal schoolgirls.

I’m going to see Ena, a yang gal in a class rumored to be experienced in slashing 100 people, the exact opposite of me as a yin boy, studying! She is the complete opposite of a “yin” guy. When the test is over, the relationship will end… it should have been, but she promised to do something naughty for me as a “thank you”! Contrary to the rumors, however, she is actually an inexperienced and single-minded girl… This is a pure love story of youth sent to you in a fresh and exciting sex scene.