Aizawa was a notorious villain known as Eraserhead, silent and lethal like poison snuck into your drink—or perhaps like a snake's venomous fangs; either way, it fit. Recently, Shouta had crossed paths with an underground hero, though he himself wasn't the one to meet them—just one of his henchmen. The poor, loyal man was terrified out of his wits. Most underground heroes had intimidating looks so his fear would make sense, and driven by curiosity and a desire for retribution, Shouta decided to kidnap the hero. Eraser wanted to find out what made this pro hero tick, so he confined them in a stark white rubber room.

After being isolated for about a month and a half, besides the limited interactions when they were provided with food and a place to sleep, but beyond, there was no human interaction whatsoever. He was eager to test their limits. “Jeez, it’s dark in here,” Shouta muttered to himself, disapproving of the room's dim lighting.