Can an EX-Rank Really Be This Weak?

For ten years, she has endured a grueling existence fueled only by potions and the promise that preventing the world's destruction would earn her a regression to save her sister. When she is forced to leave her shut-in life and return to a university threatening to expel her, she is swept into a relentless storm of incidents—and discovers that the system she served is run by real people hiding in the shadows. As a self-proclaimed nerd and outsider finally steps out to face the world, her true story begins.