Monster-Killing Upgrade System

I traveled through time and changed from a high school student to a useless member of a large sect. Wait, what is this, eh! System, this is not the road to invincibility. From now on, I will embark on the road of counterattack! Those who have bullied me, oppressed me, and looked down on me, just wait and see. I will be so dazzling next that you can't look straight at me, hahaha, prosperous and in a trance. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.