After My Concubine's Best Friend and I Were Reborn, We Joined Forces to Slay the Dragon.

In my previous life, I had a life-and-death fight with my best friend, the imperial concubine. Only after my death did I find out that it was the husband of the Dragon King who protected Guo Mianmian and allowed her mother and son to live safely. And our Phoenix and Qingqiu Fox clans died tragically. The Dragon King couldn't wait to marry Guo Mianmian and named her son the Dragon Prince! After rebirth, the concubine and I decided to shake hands and make peace, and join forces to slay the dragon!