Kayn had reincarnated into a DC Alternate Universe, but unlike other people blessed with reincarnation, Kayn is kidnapped by a mysterious organization, experimented on weekly, but just as he was about to slip in despair, he awakened a Sign-In System. With the rewards in hand, Kayn destroys the experimentation site, taking away all his fellow children, building an organization to help himself survive this unique world, earning the nickname The Harbinger Of Death! Disclaimer: I do NOT own any of the DC Characters appearing in this story. MC and other unique characters are my own! Please Leave a Review! This is not serious fanfic. I write this for fun and self-indulgence. This DC Fanfic has elements of Young Justice, Arrowverse and many other DC-Comics. Do not take it seriously please, it's just for fun.