For Yuan Ye, a cultivator in the mortal realm, the ultimate goal each day is simple: strive, strive, strive to become the biggest workaholic, cultivate diligently, and earn a place in the Immortal Realm as soon as possible. But while working himself to the bone, he runs into a very big fish.
Big Fish: "Hey, miss, I haven't seen a living person in over a thousand years. Come talk to me."
She thought she had met a mighty immortal, but it turned out to be a great demon. Then the demon's bluster gave way to a lesser demon: an adorable, tsundere little fish, and the adorably clueless, justice-loving, timid little Yuan Ye, the great immortal.