Found it in mtlnovel:
My Master is Super Strong But Too Steady
summary:
Ye Chen accidentally traversed the fantasy world, fully aware of the dangers of this world, and kept practicing low-key in the Xuantian Holy Land.
If it is inevitable, thunder means must be used to destroy the enemy!
Gou’s decisiveness, decisiveness to kill!
Thousands of years later, Ye Chen’s disciples pushed across the heavens, with coercion forever, Ye Chen was still as stable as an old dog.
…
On this day, Tiandao reshuffled the cards, and the many gods and demons in the long river of time slew Ye Chen together, and Ye Chen had to make a move.
With a sword out of the sheath, the gods and demons are destroyed, and the heavens collapse.
Ye Chen blinked: “That’s it?”
