Responses
I think when mc choses mori they can stay as they are because he likes the mc whatever they are but maybe the male version more , maybe they will find a way to stay male I don't know (⌒▽⌒)
The way the father explained it sounded like if he is with a man he becomes a woman and if he is with a woman he becomes a man. So there doesn't seem to be any way for him to end up as a man.
Whatever you decide, you going to become a woman either way, whichever ML that you choose (￣∇￣")