This story has exactly the same problem than 90% of VN´s here. Developer spends one year of his life for a couple of episodes and still MC is a pussy virgin (still developers trying we change mc´s name when nobody wants to be portrayed by that prudish) who refuses to have an approach to women in his life... I dont know if developers are a bunch of teenagers that have zero contact with women in real life, but how the f... are you gonna tell an erotic/porn story with a pathetic character unable to have some teasing, refuses contact with female characters and/or is constantly having regrets and second thoughts about sex or erotic moments?
Im not saying the characters gonna have sex first scene (in fact dialogues here are way above average), but come on, a little bit of "ok, lets play your game and have a pushover". How are you going to advance into story (specially an incest theme story, where characters should be used and intimate between them from start) if Mc acts like a repressed homo? Suddenly a sex scene comes out of nowhere because females are still trying because...reasons and thats the moment we keep trying with another game that maybe developer will know how to properly portrait characters in those kind of games...someday.