You have a hot guy who comes from a long line of lascivious men and tries to inherent his dojo from his grandfather (who's was married to an evil woman who wants to mack with the hot guy---and who's much much younger than the grandfather). When he gets there, he gets beat up by his "step-grandmother's" goons.
The only way he was revived back to health was by these special nurses who sexed him up. His powers rejuvenate through sex. The side story is that there is another evil woman who wants to end the world of men and only have women around. You come to find this evil Dr. was a man.
In any event, you go through a series of his misadventures with various side characters. The characters are predominately made up of women. But there is this one guy who does amazing things with his fingers and he "breaks" in women (through oral pleasure) who are used by hot guy's club to make money.
The other is his "great aunt," who happens to be an 18 year old tsundere loli with gray hair but is extremely intelligence and is the brains of the operation. Her mother had an affair with his grandfather. She becomes the focus in the final ep....and she's my favorite character.
Overall it's a good hentai and has a bit more depth than most. Lots of cliched characters for pure fan service but it was definitely fun.
