I Mastered the Way in a Day, and Now I Don't Want Apprentices

After transmigrating to a martial arts world ruled by killing intent, Ethan can't help feeling that something is wrong: “This isn't what the martial arts world is supposed to be like! You're supposed to introduce yourselves when you meet, exchange a couple of threats, then trade moves! Why do you go straight for your ultimate techniques?” Only after taking on a disciple does he realize that this is how things are supposed to be. “Use Annihilation on him, Xin!” “Huh?”