Hell Sovereign Of Martial Arts

*In this Isekai Continent, only the martial arts were prevalent, only the strongest one were respected!
As an orphan his parents had gone missing since he had memory.
As the poor boy whos in this Cruel where the weak were eliminated, He was struggling every day to survive...
Every night he was dream about became a powerful expert.
But he knows it was impossible...
Until oneday he unexpectedly obtained the "Prison Ring" as his master!
It teaches him the super cultivation method and helps him to absorbed endless Yin Qi from the heaven and earth.
After training the martial arts every day,  He had finally obtained the "Extreme Yin Tyrant Body".
With the strongest tyrant body in this world, Could he find his family?
And most important is that after serching the Prison ring space first floor, he finds out the this ring has the convert space! 
Not just the second level of the Netherworld. 
It has the eighteen levels of hell!
Who created this ring?
As his power become more and more powerful, He could stop to think Was this whole this all set up?