Spare Me, Great Lord!

From Webnovel:
As the superpower awoke, everyone was sparing no effort to cultivate. Lu Shu was the only one who could get stronger by collecting others’ negative feelings and calling people names! All he ever wanted was to protect his little sister, but no one could resist the trend of the world. Well, he’d just do what he had to do and thus become the strongest! Are you ready to welcome the “Super Demon” Lu Shu?