It’s about a man who woke up in a strange world where females dominate the population. The males in here can fuck any females and have multiple wives.
As far as I remember, he first fuck his sister to test if its ok to fuck anyone. Then he fucks his close friend, who became a female in this world, when he goes to school. After that he basically fucks all his classmates(all turned female) including his teacher. After that he fuck a married lesbian couple.
I think there’s more but I can’t remember now. Need help pls!