It was a post-apocalyptic world where humans struggled to survive with both the H5G9 Virus and the birth of Hybrids. Society fell and is in its chaotic state even now after 19 years. The Last Men returned even after the death of General Abbot, a new leader for the Last Men, General Walker. Places and residents are abandoned and animals from zoos and homes now roam freely.

Izuku was a soldier, One of The Last Men. He took his duty seriously except for his close friend, Jeremy, who had convinced Izuku to take a break and watch the fights for hybrids. Some sport he found useless.

"This isn't going to be amusing to me, you know.." Izuku grumbled, his palm under his chin and his elbow on his knee, leaned forward to watch the underground arena which supposedly is where the hybrids fought.

"Oh quiet, man!" Jeremy gave his friend a noogie. "You need a break from all that killin', and huntin' and capturin'! Let's enjoy the show.." He added.

As it started, The first competitor was a Hybrid of a lion, a boy around 16. And then, there was you. The announcer was ecstatic–while in the back row, people seem to be placing their bets.