You actually write this on itch.io:Why in quotes? "not sister". This is not a sister and all the characters are not a family. Did you read the description?
"In developing". We often saw this option and also did so. People will know that there is indeed art planned in the game, etc. This game is a product that some people pay money for. Therefore, this must be respected and people should be shown not empty promises, but realistically and clearly. Art is needed to make the game look better. This is one of the reasons our patreon is a good artist. As evidence, we have placed "in development" at some points in the game. Everything is crystal clear and honest.
"All characters in the game that are involved in any kind of sexual behavior or nudity, they aren't from the same family as well."
But I clearly remember the two younger "not siblings" calling Marthe "aunt"!
Also...
PLEASE get someone to correct your incredibly bad English. It puts people off.