Cultivation: Choose a System? I Choose to Become a God!

[History] [System] [Single Male Protagonist] (It's just written casually, don't worry if it doesn't look good) Nangong Bing is just an ordinary person, but after taking his pulse once, he came into contact with the mysterious science of cultivating immortals! One place after another, they helped Nangong Bing grow, and Nangong Bing reciprocated... He escorts, He loses, He repairs, He opposes, He bridges, He helps, He negotiates, He dies...