The thing about that is, I'd have to rewrite most of the story. It's written to be a cis guy discovering he's into femboys and transgirls and nonbinary folk. A lot of his character growth and inner monologue are reflective of him being a cis dude.
Changing the MC's gender would require me to write the whole thing for each gender to account for how they would view events AND we'd have to redraw/reanimated everything.
The game is very specially about a cis man as the lead.