When Yuuta wakes up, he finds himself in a new body with most of his memories intact. It’s a world with a man to woman ratio of 1:10,000, rebuilt from the ashes of the old world – our current, modern world. Naturally, men are treated as precious by each country, and they’re provided everything they need for living. But that comes at a price. Men have obligations and they are but one cog in a society of females which follows strict rules and adheres to a harsh class-based ideology and traditions. This story is similar to World End Harem in its underlying idea, but unlike the manga, it follows a violence-free approach, putting more focus on the system. It contains soft p*rn and later on s*x scenes, but no non-consensual s*x like r*pe or NTR.