My Idea is a lustful and manipulative person gets reincarnated in a crossover world of Monster musume and Danmachi as the prince of a royal elves But the world is inverted the man are now having the role of women and women are playing the role of a man. For example the man are now practicing husbandry instead of learning how to fight, etc and it's also not a matriarch world where women dominate the man, alright. The thing that I'm going with this is the MC is gonna corrupt the women to fall for him while acting all innocent.
Also if you make it so he can go to another anime world make that world also an inverted world. Also the population of women to men is 70 - 30 percent or lower the percentage of man however you want.
I thought this will be interesting so I wanted someone to create something like this or something like (The master of all elements and his debauchery) It's an amazing novel, Im just waiting for the author to finish his exam and create a chapter. Read that first then you can understand where I'm going with this.