Gosu

A young man set forth to avenge his master, a once powerful martial artist who was betrayed by his own men and barely escaped with his life. Armed with his master’s supreme martial art techniques, he is ready to bring terror and wreak havoc among the murim. But before he even got started, he learns that the ones who had betrayed his master are already dead… Erm, so what happens now?

Martial Arts Manhwa you may like:
+ Yong Bi The Invincible
+ The Breaker
+ The Breaker: New Waves