Just saying 90% of visual novel fans are there for the story even if it has porn. Creating a new world just to basically cut it off for, lets face it a far harsher and worse genre of creation is just wrong. Especially since you're losing a core part of your fanbase that was interested in having both. So I urge you to please reconsider this choice. Especially since not finishing the project looks bad on your side and in the same vein even if you didn't want the porn you 100% could have removed it and edited the story to not directly have porn but have adult themes instead.