To Get Stronger, I'm Forced to Dual-Cultivate with the System

[Coming-of-age journey · high-martial-arts otherworld · martial artists · occasional brutal beatdowns · human-demon war · slow burn at first] Zhou Wulie, an overworked wage slave from the twenty-first century, dies in an accident and arrives in a high-martial-arts world where everyone practices martial arts. There, he gains a Dual Cultivation System and climbs step by step to the pinnacle of life…