Original protagonist gender is male. Feminization ain't avoidable, but you can choose type of feminization you prefer the most: male-to-sissy (keeping breasts to a minimum size is still very difficult, but possible), male-to-female with a penis, male-to-female with a vagina, male-to-female with both: penis and vagina. You may be "he", "she" or "they". You may be submissive, switch or dominant (in a limited way). On the path to feminization you can be voluntary (you want it), obedient (you do as you're told), forced (path of resistance), mercantile (greedy, "all for money" style). Chastity cage are optional too.