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Intro. In 2035, a comet passed the Earth. This incident caused someone to mutate the futanari gene on the X chromosome, causing some female fertilized eggs to absorb an extra Y chromosome. The absorbed Y chromosome completely combines with the X chromosome containing the futanari gene, allowing the original female embryo to develop into a futanari. Some men with the futanari gene on their X chromosome will activate the futanari gene after drinking futanari milk and semen and grow into real futanari. Such men are actually very lucky.

Tomboy futanari hair small

@奥古斯都