I Let You Study Hard in a Cold Window, but You Quietly Slayed the Demon and Became a Saint

Lu Yan, the top scorer in the college entrance examination, received the admission notice from Harvard University! But my mother forced Lu Yan Lanxiang to go to technical school! On the first day of school, the instructor actually led them to "kill people" on the street! ! ! "Ding dong! Congratulations to the host, the demon slaying system is activated!" "Congratulations on getting the skill "Assault", which can triple your speed!" "Congratulations on mastering the skill "Frenzy", your power can be tripled!" "Congratulations on acquiring the violent devouring ability of the Yin Snake!" … Lu Yan gradually discovered that this was a world where demons and demons coexisted. And he will be rewarded for slaying demons! Invincible! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.