After Gaining Eternal Life, I Took My Wife to Cultivate Immortality

(This is a slow-paced story, with a protagonist who isn't invincible, a half-dead System, and one heroine. It's a beginner's work, so please be kind!)

A speeding car carried a wife with a wounded hand down the road. The accursed transmigration-passport truck barreled toward the ill-fated couple. A System's voice rang in their ears: "Hello, esteemed Chosen One. What the heck? Why are there two people? Recalculating... System rebooting... Insufficient energy... Host, please make a choice."

The Divine Land had remained unchanged for ten thousand years. This was a world of cultivation, where countless sects stood side by side. Golden Core immortals could abstain from food, fly, and live for up to five hundred years. Nascent Soul monsters could lose their bodies without their spirits perishing. Thus, emperors sought the path to immortality, while commoners sought ways to strengthen their bodies. Liu Quan and his wife, Zhang Jing, would write a legend of eternal life...

The protagonist is a cautious survivor. Expect comedy, a married couple bound together, and immortality spent seeing all the world's sights.