The Imperial Concubine Betrayed the Emperor

My husband, I, and his little love traveled to ancient times together. It's just that he became the emperor and I became the imperial concubine. Xiao Qinger is the queen! Before I could react, he issued an order and demoted me to be the Queen's foot-washing maid. Little do they know that this is a world where the children and elders are strict. I, the eldest daughter, have the right to marry him, the concubine emperor.