Signing In Under the Heavens: I, the Medicine Elder, Am Invincible from the Start

The continent's most renowned alchemist was supposed to be nothing more than a wisp of a remnant soul in the original timeline.

But no one knew that more than a hundred years ago, his body had already been taken over by Li Yao, a transmigrator from Blue Star, who had also bound himself to the “Myriad Worlds Sign-In System.”

For a century, all he had to do was sign in at designated locations to obtain innate spirit flames, Emperor-grade pill recipes, fragments of the Great Dao's laws, and more. His power soared, yet he deliberately kept his cultivation suppressed, treating the continent like a playground.

Now the story begins, and Xiao Yan arrives to break off his engagement as expected. The transmigrator Yao Lao smiles and flicks out a wisp of Bone-Chilling Flame. “Don't panic, my disciple. Your master is invincible. Go wild.”

And so...

Nalan Yanran: “Thirty years east of the river? My master says you'll be flat on your back today!”

Yun Shan: “A Dou Zong cannot be insulted? My master slapped him so hard he turned into a horse made of battle qi.”

Hun Tiandi: “After a thousand years of plotting, I've finally become a Dou Di... Wait, Yao Chen, when did you become a pair of Dou Dis?”

“Disciple, signing in at the Jia Ma Empire gets us an Emperor Flame. Shall we take a detour and wipe out a sect for fun?”

“Little Yan, the alchemy tournament in Zhongzhou is boring. I've entered you in the ‘Myriad Worlds Alchemy Grandmaster Tournament.’”

When Xiao Yan finally managed to grow wings of battle qi after countless hardships, he discovered that his own master had already become a legend throughout the Myriad Worlds:

“That lord once fished for a Kun in the Sea of Chaos and cooked a phoenix above the Ninth Heaven. His title: Sign-In Celestial Venerable!”