When Bai Mufan opened his eyes, he found that the whole world had changed! In this world, the concepts of men and women were reversed. Women are respected, and it is normal for women to go out to earn money to support their families, while men set their lifelong goal of becoming a househusband! The scary thing is that Bai Mufan also found that there is an extra boy boy system in his brain, clamoring all day long to make him the world's number one boy boy! And definitely not being a badass!