likely the prince is her love interest and I guess the reason he didnt choose the other 2 appropriately aged girls to be his fiancee is because he's a pedophile and everyone's gonna be magically cool with it (except her cousin). the story wouldn't have made a huge difference if they had aged her up but I guess the author wanted to fulfill pedophile fantasies smh
what manga is this from? https://www.mangago.me/read-manga/ijimekko_to_nakimushikun/uu/ijimekko_to_nakimushikun-chapter-2
our main characters are fighting a pedophile ring while simultaneously perfectly fine with a man they know grooming a 12 year old girl (even offering him love advice) to which he also has a son the same age as the little girl? is this a mistranslation or...?
Its more like that 12 yrs old girl is actually a boy buy everything else on point really.