The two types of stories in my head.
There a man the have two girlfriend. The twist is he has a two personalty, each one of the personalty is madly in love with one of the women. just like that woman is madly in love with that personalty. The women don't know about each other. The plot is that he get into a car crash and He wakes up to see both women standing over him pissed off. His two personalty are now one again. the the sum of the idea. would need two female rpc's, don't care if writers are female.
The next Idea is a harem style. i read a manga where a guy finds out that his daughters are coming back to the past to make sure they get born. i for get the name but would any of you be intrested. any number of female rpcs, don't care if writers are female.