Gosu

When his master dies, Gang Yong pledges to avenge his teacher at all costs. After training his martial arts skills in seclusion, Gang Yong sets off to hunt down the traitors and make them pay. But when he gets to town, he discovers they’re… Well, what’s he supposed to do now?. 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