"Reincarnated into a world with only one gender"

Being reincarnated into another world can sometimes mean that world is fantasy. For example, you might be reincarnated into a world where magic exists. For example, you might be reincarnated into a future world. For example, you might be reincarnated into a world that looks just like an otome game. So it's also possible to be reincarnated into a world where the only gender is what's called "futanari." This is that kind of story. (Just a little breather. There are no plans for a serialized version)