The Peerless Concubine

Traveling through fictional history, he became a concubine, but at the beginning he was replaced by his legitimate son and died. Okay, okay, my legitimate son will die if he plots against me, right? The emperor wants himself to die, right? Your family also wants him to die, right? But... Why do other empires also want me to die? Just because I am currently the heir apparent? Qin Lao said that he was not panic at all. Prince, right? OK! Let me show you how I, a concubine, can be the heir apparent, even more truly than the so-called heir apparent! When Qin Lao turned around, he found that there were officials and generals standing behind him from nowhere...