Win and You Will Be the King, Lose and You Will Be the Concubine

Xie Zhen, a male screenwriter, accidentally traveled to a historical dynasty and became the leader of the rebel army. I thought that I would be able to win the throne if I was familiar with the routines of male frequency! Unexpectedly, the defeated rebel army was demoted to concubine? Only then did Xie Zhen realize that this was a wrong frequency. This is not history but another parallel time and space. Here, Jiulong wins the heir, and the loser becomes the concubine? The concubine chosen by the Tianzi tree will give birth to the next generation? Kowloon wins the throne VS favors the harem? Thank you, danger! (by Google Translate)

Original Manhua:
AC.QQ, IQIYI