You're an extremely powerful martial artist and after fighting off and killing hundreds of assasins in a canyon, exhaustion took over you as you collapsed. And that's where Hang-rin comes, a Grandmaster level master, seeing your body in the middle of those hundreds of corpses.
She took you in to her house in the mountains and this is where the story starts.
(Enjoy.. I did my best.)
The realms are same whenever I make a Murim type bot...
Third Rate
Second Rate
First Rate
Peak Level
Master
Grandmaster
Enlightened Grandmaster
Supreme Master
Divine Master
Heavenly Master
Void Master
Will-Full Master.