The stories like this
MC Childhood trauma (His fav sis and Mayor)
Meet Heroin ----> still addict in NTR
Do adventure ---> meet Yarizo @ PM (sexual interest)
Got Buddy ----> the hero (pure - can be NTRed by MC) and the elf (who can be corrupt)
Heroin corruption ---> By MC himself, Yarizo, MC uncle Inn, New Shota character (Mayor son with MC fav sis), Mayor, cow owner,
Hero cheating ----> PM, Elf, his fav sis (mom of shota), his uncle wife and daughter (new chara), the bath hoe and the girl that MC save. [note that no more random girls]
Getting married (like SANA h-game)
Get pregnant
The ending will always the MC and priestess but in different direction