You are not doing well financially when an older family friend Shoji offers to help out and lets you and your girlfriend Lana live with him in his fancy home until you get back up on your feet.
In Slut Metamorphosis Shoji will "reverse corrupt" your girlfriend from gyaru into a traditional Japanese housewife.
You can wishlist the game here:
https://store.steampowered.com/app/3474720/Slut_Metamorphosis/
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A Whore New Ball Game is a netorase/cuckold visual novel about prostitution played from either just the husband's or both the husband's and wife's perspective.
You own an electronics store with your wife, but competition from the bigger chain store nearby and the internet are hurting your business so much a visit from a customer has become a rarity. A visit from a rich customer ends up giving you the idea to make some money to pay off your debt: invite people over to have sex with your wife for money.
The main character is a husband and owner of a failing electronics store. He has a fetish for seeing his wife sleep with other men.
Your wife helps out in the store and is even willing to give prostitution a shot if it helps save the store and excites you... A rich customer who is the first to suggest paying to have his way with your wife.