Global Killing: Awakening SSS-level Talent at the Beginning - Chapter 8:

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.

Rainer, an amateur arcanist and college student, sought to create a new spell far surpassing the magic of the few he inherited from his grandfather. Yet the interference of an unknown event during the casting of his spell led him to be thrown through space and time.

After mistakenly pointing all the attribute points to the treasure drop rate, Xiao Shi found that every time he kills, he will drop an item.

A mosquito was slapped to death, and a pill fell out.

After killing an evil spirit, a cheat book fell out.

Hacking a martial artist to death will drop out the opponent’s cultivation experience.

…

- Description from novelbuddy