Genius Tamer of the Academy

A veterinarian intern, whose life was worn out by constant overtime, one day found themselves transmigrated into an extra villain in a dark-themed novel. [Synchronizing with Han Si-ha’s perspective.] “Why… of all people… did it have to be Han Si-ha?” Wait, if I’m destined to die because of bad deeds… can’t I just live a good life instead? But you know what? This school… seems to suit me pretty well.