Spiritual Recovery: Gamification of Reality

Following the spiritual revival, others cultivated while Xu Bai leveled up.
He got the game system, but because he never received the main quest, he furiously collected twenty-two years of experience value.
Then...
Xu Bai suddenly found that he had, as it turned out, been invincible.
Cultivation techniques.
Full-level abilities.
The crowd: Why do you even have no bottleneck?
Xu Bai spread his hands: What bottleneck? Click and upgrade. Isn't that simple?