Immortal for Eternity, with a Pre-Heavenly Cave Abode from the Start

Wang Wudao transmigrated and became immortal from the start. The System even rewarded him with an innate grotto-heaven.

So Wang Wudao decided to stay cooped up in his grotto-heaven. Since he was already immortal, why go out to fight and kill for a chance at immortality?

One day, a green snake broke into the innate grotto-heaven and asked Wang Wudao to take it as his disciple.

A thousand years later, a demon snake calling itself the “Azure Emperor” wreaked havoc in the Heavenly Palace.

Another day, a monkey came to ask Wang Wudao to be his master...

“Hold on. If you become my disciple, you absolutely cannot mention my name after you leave the mountain. Otherwise, I'll eat your brains right now.”

“Old Sun absolutely knows how to keep a secret. I won't mention my master's name.”