If you want to play as herm, you will have to find a less realistic game. This game aims to simulate a relatively realistic university life, so people like this don't exist here since they don't exist in reality either. Maybe in the future intersex people will be added, but even these people are not really hermaphrodites, and it would certainly be quite rude to refer to them that way.
Assuming you weren't being rude at all here, I'll make a point of pointing out that this game doesn't have futa people and probably never will since it aims to be inclusive and friendly. IMHO, it has quite a bit of variable sexual content, and possibly more will be added as the developers continue the amazing work.