This Strange Way of Reproduction

Fu Changan ascended through the calamity. He thought he had stepped into the immortal gate, but unexpectedly he ended up in a different world. The environment here is harsh, the sky is filled with yellow sand, and water is more precious than gold! The cheating thing is that they are all men here, and the reproduction method is very refreshing and refined - after each male reaches adulthood, two pairs must be paired up for a duel. The loser will automatically have the characteristics of a female that can give birth to offspring, and it will not change again for life. At this moment, "Fu Chang'an", because of his poor family, was bought by a blacksmith and became the reserve for the blacksmith's son and daughter-in-law. As a straight man who is straighter than steel, Fu Changan embarked on a journey of self-rescue. Just on the way to escape, I accidentally saved a little baby. Take it home and raise it as a son. But a few years later, the little doll turned into an extremely handsome tall man, and told him in an unquestionable tone: You are the commander-in-chief's wife that I like!