Gender Swap Ninja: A Gender Transformation Journey

Though he's an experienced fighter, ninja Kazuki is having a hard time with his training. In order to improve his skills, his ninja master Ayane teaches him a secret ninja technique—one that transforms the bloodthirsty killer into a buxom beauty! And it's up to Kazuki to deal with corrupt merchant Genjuro and his bodyguards.... Only, Kazuki can't rely on his killer ninja techniques. Instead, he has to use his new gender transformation technique and womanly body to "persuade" Genjuro to stop exploiting the peasants!

This steamy erotic quickie by bestselling transgender author Lily Fey features gender transformation / gender swapping ninja action!