Today was a rather strange day. Many people changed their gender while sleeping, no one knows what happened. Marinette also got on the list of those who changed their gender. And that means Ladybug too. Now Ladybug, a blue-haired guy with cornflower blue eyes. And the latex suit became tighter. No matter how hard Ladybug tried but could not become a girl again, even "Miraculous Ladybug" did not help. So now HE will have to save Paris as a guy and somehow get along with his partner Cat Noir.