Set in a world where people are born with a kill limit. This is how an Unlimiter who've never killed and a serial Killer who can't kill, come together and make waves. Tupaq is said Unlimiter, and is procrastinating on a world changing mission. Makivelli is a Serial Killer who can't kill cause he has a corrupted kill limit that changes every time he wakes from consciousness: and became the leading Hematologist so he can try and cure himself.