Single gender allies
Both genders are present, but all of your immediate allies (such as team members) are of the same gender with no variation.
The first video game about Single gender allies was released on November 18, 2010.
If player controls a group, then that group is primary focus here. If player controls single character, then the people who are on their side (or if such are not available, people who aid them) are the focus. The former can be extended to include the broader sense of the latter, but probably should not be.