About Having to Turn into a Girl Whenever I Lose at Cards

In another world much like Earth, an unknown virus from beyond the skies has made it so that humans can only have boys. The world is on the brink of disaster. For world peace and the continuation of the species, all the nations join forces and finally find hope through the ancient treasure known as the World-Creating Cube. Its immense power will cover the entire planet, and then they'll start playing cards. Whoever loses will turn into a girl!!!

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.