いきなり同棲性活?!

My eroge summer was all planned out, until I suddenly had 2 fiancee roommates. 
Now I'm LIVING in an eroge!

STORY 
My name is Satoshi Sawamura. 
I longed for a simple, private life with my **** games. 

Then my parents saddled me with not one, but two arranged marriage candidates. 
Both were my childhood friends. Not only that, my parents said 
that "a good marriage starts in the bedroom", so I had to make a choice: 
who's better at sex? 

Bring my lovestruck little sister into the mix, and you're all caught up on my crazy life. 

Here we go. 

* Who do you choose? Haruna, Miki, or brother-loving imouto Yuki?!