My Gu Can Cultivate on Their Own - Chapter 168 - No Problem!  

A once supreme celestial being is reborn in the world of mortals!With the ability to decide life and death in his left hand through his remarkable medical skills,And overwhelming supernatural powers in his right hand to crush everything!Unrivaled in both medicine and martial arts, he roams freely with arrogance!

When an S-class elite assassin-raised captain of a special ops suicide squad comes home from a high-stakes Africa mission, he finds himself offered something that could potentially set him up for life- a curious assignment that he could use to finally exit his days of war and slaughter.

What is a genius? Capable of comprehending any battle skill regardless of the skill itself and sweeping away the bottlenecks while cultivating a new technique; this is a true genius! He Yiming was originally an ordinary youngster in the He family’s estate with not too extraordinary aptitude in learning martial arts.

However, after a fortuitous encounter, this ordinary youngster became what people refer to as genius in a single leap. Possessing an aptitude for learning martial arts which would leave people in awe, regardless of whether it’s his clan’s Houtian Scripture of Five Phases or various Xiantian scriptures of legends. Regardless of whether it’s mental techniques or battle skills, he can comprehend them all in their entirety at a frightening speed. Martial God, with martial as its name, using the most simple and direct approach, thrives!

- Description from Novelupdates

Yuki, a high school junior, dies heroically saving a stranger and is reincarnated in a fantasy world, where he discovers an extraordinary and unrivaled power.