I Am a Bloodthirsty Maniac but Got the Good Guy System

People say that the brighter the sun*, the darker its shadow. Those who seem to have no selfish desires and are almost like saints are the most terrifying! Jiang Jing is a praised doctor during the day, but when night falls, everything becomes different, and the bestiality hidden behind human nature begins to appear. But such people got the good guy system in one day. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.