Hey you! Have you ever heard about systems?  Yeah, the ones in novels with shady origins... the annoying systems that babysit the protagonists of the novel? The same ones that give them ridiculous rewards for the annoying and easy quests they themselves forced on their hosts?  Have you heard of them? If you have, then let me confess something...  I also have a system...  No, no, I ain't the protagonist, that's that regressor, but somehow I have his system!  Though destroyed with no quests or major restrictions and just the ability to copy others' talents and a few OP rewards, I have somehow stolen a freaking system...  Now what to do?  Apologize to the protagonist and return the system? Heck no!  In a world infested with monsters and supernatural beings, I would be an idiot to give away such an amazing opportunity to anyone...  When the world faces a crisis in the name of insanely powerful creatures that wish to wipe off humanity from the face of the earth, what do you think would happen when a selfish individual acquires the possession of one of the few powers that have the potential to save it?