This game should be called "The Cuck Chronicles". Sorry, but the NTR vibes are way too strong with this one. A shame, I was really enjoying the story. So far i've met 5 LI's. One of them said to your face that she would fuck your brother, the other one you apparently willingly share her with him, and the third(your ex) cheated on you.... again with your brother. Then comes Charlotte, I think FINALLY a LI that isn't a whore, but nope, then you have the scene with her were she fantasizes about sucking another Man's dick...... If you're gonna have NTR, at least give us the option to tell the girls off, and call them out for being whores, it would at least give us SOME satisfaction lol.
Might as well just make the brother the MC at this point