A hard-working reform-through-labor prisoner who was dedicated to his job received a repatriation agreement from the prison guard when he was about to retire, sending him to live his life again.
He didn't want to repeat the domineering and cool life he had when he was still a human being. Not only was it very tiring, but it also didn't end well in the end.
So when Sein's second project just started, he didn't have any lofty ideals. The best life is to have food, drink, talk nonsense, play magic, and find your harem back when you were alive... Wait, where is my harem?
This is a story about a person who was reborn as a prostitute and found out that everyone had changed their gender. The master is the master, the harem becomes the back attack, he fights monsters and upgrades to recruit younger brothers, and he conducts scientific research and missionary work to build cannons. I didn't think about it when I wrote it, and it's best not to think about it when I read it_(:3∠)_
(This article is also known as "How to Correctly Be a Straight Man in a Sexually Changing World", "Being a God Seriously" and "My Road to Re-employment after Being Laid-off")