MTL - American Comic Survival Guide - v2 Chapter 737

A massive underground labyrinth awaits in an alternate world of swords and magic. With a game-like system much more familiar than spells and magic circles, Beatrice has managed her magic and risen to the position of “strongest”, but she still has her worries.

“Bghohhh!! Bshrrrr…mumble mumble…”

“B-Boo Boo! Stop! Stooooooop!! I’ll…I’ll be crushed!? I-is my, ah, love being tested!?”

Who is the legendary man named Boo Boo who, just by taking a nap, can overpower the Level Cap Holy Swordswoman? A thousand meter dragons and a proud elf girl will also show up, so what exactly is going to happen with these residents of another world!?

In the end-French era, after countless calamities, the era of cultivation is coming to an end. The last combination of air transportation and evolution has evolved into the treasure board, which was obtained by the last practitioner in the end-French era, which opened up a legend of wandering heavens.

- Description from Uukanshu

Ye Xuan is a very good doctor. Even though he is only 14-15 years, he has been learning medicine with his grandpa since he was 3 years old. His grandpa is a legendary doctor, of the Medicinal Dao Master level just one step shy of the ultimate level.

But his grandpa suddenly died after trying to cure a mysterious person with the “Hundred Evils Body” and Ye Xuan is now trying to survive together with his uncle. His grandpa left the first half of his doctor’s manual to Ye Xuan. The other half is in the hands of a former friend of his grandpa who now refuses to return it.

Ye Xuan has to become strong to retrieve the 2nd half of the manual. The first half of the manual contains a special acupuncture method which allows Ye Xuan to cultivate much faster than normal people.

When his uncle suddenly disappeared, leaving only a note with the word “flee!” on it, Ye Xuan is left on his own to survive in this world.

When Ye Xuan finally made it into a sect, he was forced to join a waning division of the sect where he is the sole student of a beautiful woman. His master…

- Description from Novelupdates

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!