First request for a story (sorry it was so long)

Hello, I'm looking for someone who can create a story with the same theme as this one: [https://zonatmo.com/library/manga/76404/hikarutohikaru](https://zonatmo.com/library/manga/76404/hikarutohikaru)

A ninja who can transform into a woman by squeezing his groin, but if his penis gets hard he loses the transformation. If he wants to transform immediately, he has to deliver a devastating blow to the groin to do so, but if he does it too much, he can end up impotent.