Battle royale: me the demon apostle versus 29 heroes from my class!!!

Thirty students are summoned to another world by a goddess, but the Demon King steals Sakura Takada, a popular seventeen-year-old honors student and secret otaku. She must survive the conflict as her light-novel knowledge, the Demon King, and his minions become her unexpected advantages against the twenty-nine students left behind. To make her his apostle, the Demon King grants Sakura the ability Unlimited Potential, allowing her to grow infinitely within the new world's limits. She receives only basic survival skills, and every further skill or increase in power must be learned the hard way, with no shortcuts or effortless levels.