When the Prosperity Is Gone, Who Will Drink from the Underworld?

[Ancient times + dual male protagonists + seeking power + 1V1 + sourness + sadistic writing + BE] He is Shen Yanqing, the cold prince who is famous all over the capital. He is as dignified as jade and has unparalleled plans. He is Wang Xiaozong, a man with a different surname who comes from a muddy background. He is ambitious and decisive in killing. Ten years ago, Shen Yanqing rescued Xiao Zong from freezing in the snow, taught him poetry and calligraphy, and taught him swordsmanship. Ten years later, Xiao Zong led 300,000 cavalry through the imperial city and cut off all the royal bloodline, leaving Shen Yanqing alone. The former Highness Ruyu became a prisoner of a powerful minister, had his hand tendons cut off, and was locked in a deep palace, suffering heartbreaking pain every day. Xiao Zong thought that by breaking his wings and crushing his pride, he could keep this person by his side forever. Little did he know that all Shen Yanqing's surrender was just to protect his younger brother's last chance of survival, and to set up a murderous trap in which both of them would die. "Xiao Zong, take this country, take my life." On the day when the city was destroyed, the red plum blossoms fell and the snow fell. Shen Yanqing jumped from the thousand-foot city tower, and Xiao Zong's imperial crown was dyed red with blood. The new emperor who had just ascended the throne became bald overnight, guarding a cold corpse, conquered the world, and remained crazy for the rest of his life.