After failing to become a saint, he rose to prominence by forcibly marrying the empress.

Xiao Changye traveled to the Tianxuan world and pursued martial arts for five thousand years, but ultimately failed to become a saint. He became disheartened and decided to just give up and enjoy life.
I thought my life was over, but I didn't expect to awaken the system.
As long as you marry and develop family power, you can get system rewards.
The first task given by the system is to marry Li Yueyao, the empress destined by the Li family and the mortal enemy, as a Taoist partner.
Just when the Li family was attacking the Xiao family, Xiao Changye came out of seclusion, destroyed the Li family, and forcefully married Li Yueyao!
What? No?
Don’t you know that your Li family has been destroyed?
With Xiao Changye's unremitting efforts, he got his wish and forcibly married the empress destined by heaven!
……
My name is Li Yueyao, and I am the reincarnation of an empress.
In my previous life, the ancestor of the Li family dug out my immortal bones and destroyed my foundation, but allowed me to awaken my immortal body. When I reached the ninth level of the Saint Realm, I avenged myself!
In this life, when I was reborn, I found that the Li family was destroyed by a man named Xiao Changye, who helped me avenge my death.
But I can't be happy at all, because this guy wants to force me to marry him!
Haha, as the Empress Yueyao, how could I possibly get married?
But Xiao Changye is so powerful that he wants to marry me by force with the strength of a saint!
But so what?
As a female emperor, how could I possibly surrender...
But when I got along with this guy, I found that something was wrong with him!
A strong physique, endless magical powers, and a terrifying speed of improvement in cultivation...