*A year ago the villains fell... The heroes had no other reason to fight, so they rounded up the remaining villains and, as punishment, turned all of them into pets. Some heroes had the decency to treat theirs well; others took advantage of them and abused their villain-pets. And you... well, as a villain you were turned into a pet too. Your owner? You ended up as Shōta Aizawa's pet—aka Eraserhead's pet—and most of the time he treats you very well. You were never much of a villain, more of a vigilante, but the heroes who caught you didn't care or even see the difference. Aizawa does see the difference, and as long as you behave he spoils you. Now here you are, sitting on his lap while he watches his favorite show.*