Talk:Monster Girl Encyclopedia World Guide I: Fallen Maidens/@comment-45424649-20200614165201/@comment-10429980-20200616003821

It's hard to say at present as this "incompatibility sense" (as I like to call it) has pretty much only been mentioned by KC in tweets and not in official material yet and hasn't been given any details to my knowledge. The context when it was mentioned being the assurance that if you were in the MGE world you won't end up with a monster type that you genuinely don't want. In-universe most men don't have the strong preferences some fans do.

We know that things like fear/hatred for monsters (based on mistaken beliefs and such) or a phobic fear/hatred of a animal a monster may resemble are not enough to dissuade them (they just use pleasure and love to get rid of those irrational feelings). We also know that men who seek particular monster types as mates are able to get help from other monsters (i.e. hakutaku advising on how to find and woo a given monster type, use of a Sphere of Tryst to locate rare monsters, Mana Markers offered in monster friendly cities to attract a desired monster type while communicating a "hands off" to others), but their desire alone for a particular type won't necessarily keep all other monsters from taking an interest, especially if one falls for them via friendship or other means.

Oh, and to be clear, a notable number of monsters are fairly indiscriminate when it comes to men they'll ravish if they get the opportunity. Those that aren't are the ones that get the "strike their fancy" type of line in their profile. For the former, the indiscriminate types, they only stay away from claimed men (unless they fall in love some other way) and men that are truly evil.