The Main character starts turning into a half-elf during the course of the day. Every girl that he ends up having sex with, if at the age of 18, also is converted into a half-elf. Each develop their own powers but usually its just one power. Later on in the game you gain the power to merge some woman together, merge yourself, change your sex, change your sex and add a dick, add powers to sex toys, mass manipulation and sex, creating clones…etc etc etc. You start to find out that there are also a lot of girls who are actually your half sister. Sometimes a bit after already having sex with them. Its all done with the idea to keep it beautiful but also maybe with taboo subject matters.