My master gave me a death mission: to go down the mountain and retrieve his granddaughter.

Unable to disobey my master's orders, I, Su Muchen, the sole successor of "Tianmen," am forced to descend the mountain to "marry" the granddaughter I've never met before—Lin Wan'er.
She thought I was a poor boy trying to climb the social ladder, so she gave me a one-year contract, telling me to start from scratch. Little did she know, I could single-handedly govern a nation, and a stomp of my foot could shake the entire planet.
Okay, I'll set a small goal first: to build a business empire within a year.
From then on, the city gained an invincible legend. Underground kings bowed down to me, business tycoons became my underlings, ancient martial arts sects avoided me, and confidantes stayed by my side.
When the long-lost "Heavenly Gate" once again stood atop the world, and all the cultivation forces of various countries were brought under its control, Lin Wan'er discovered that her fiancé already held immense power.
However, beyond the stars, a "reaper" from the depths of the universe is quietly approaching...
I thought this was going to be a carefree trip in the city, but I never expected to become the savior of Earth.