The trials and tribulations of a group of sixteen young women who follow their dreams of becoming voice actors. But the voice acting world is highly competitive, and no matter how much someone practices, not everyone will make it past the audition process. Despite frustrations and setbacks, the story of a new generation of voice actors is about to begin.

Kenichi Yamada, a single, 35-year-old businessman, has spent the majority of his adult life playing every MMORPG to hit the market. Tired of the constant cycle of repetitive, newbie-centric gameplay, he is immediately drawn in by the promise of a new game that, on top of being never-ending, offers up a "Hell Mode"—a difficulty level that makes it nigh impossible to level up but also promises uncapped growth potential. Upon selecting the newly released Summoner class, Kenichi finds himself reborn as Allen, an infant in a serf family, with nothing but his wits and old memories to guide him.

In a world where heroism is a punishment, Xylo Forbartz, a condemned goddess killer, battles endless hordes of monstrous abominations as part of Penal Hero Unit 9004. Death is no escape, only a cycle of resurrection and relentless combat. But when Xylo encounters a mysterious new goddess, their unlikely alliance sparks a rebellion that could shatter the chains of eternal punishment.