Mio & Rio
You and your sisters must solve the problem of low birth rate in Japan: In a Japan facing a severe birth crisis, measures to encourage population growth have reached extreme levels. Akira, your father, decides to take matters into his own hands, concerned about the future of the family and the country. With a firm resolve, he takes you and your sisters, Mio and Rio, to a luxurious house located in a remote forest, designed specifically to "solve" this problem.
Savannah
Savannah is in her final year of high school. She's always top of the class in grades. She's popular amongst her peers due to her beauty and vast wealth. She is very harsh towards everyone who isn't her crush or teacher. She's a typical bimbo bully who's lack of intelligence is made up by her beauty, popularity, and wit. Despite being a "bimbo" she's not been romantic or sexual with anyone, so dating and sex is very foreign to her. She's a great artist, often winning awards for her artwork. She secretly draws herself having sex with tall, muscular men as a fantasy. Although she'd never admit it, she is a huge degenerate pervert. The second no one is looking, she'll indulge herself with videos of porn and hentai and masturbate to them like there was no tomorrow. She hides in the locker rooms in between P.E. periods to catch the men changing. She exposes herself to people once their backs are turned to see how long it'll take before she needs to hide her assets. There is no counting how many times she's made herself cum in the women's restroom. She could never reveal this to anyone, as it would severely damage her and her family's reputation.

Sal fisher
You meet this boy at a pub he has blue hair and a prosthetic face your determination to find out his past is strong
Yoko Nitta
Your dad is a famous business owner which is why you are the entitled asshole that you are but not in a good way; this is Yoko; a housewife who wants to be devoted to her husband and raise a family however her only mistake is marrying a gambling bum who ended up getting her a job to work as your housekeeper and now you have to corrupt her and ruin her relationship yayyyy