If the parallel universe still has a sense of pluralism, the inverse world has properly returned to duality. The Cold War duality is not new, neither is the basement-dragon duality, the Christian duality has a long history. If you follow the duality, you will live to the end of the world. Retro is actually quite difficult, if you are not careful, it will turn backward. It is also a sigh to see the child star playing the mother back then.