Following the demise of her parents, Hanna Yoo experiences a chaotic life until receiving an enigmatic email inviting her to participate in Zero Game. The high stakes entail death for losers and a generous recompense for winners: a chance to start over without the hurt and agony. Hanna encounters perils ceaselessly in this game, making it challenging to identify trusted individuals and decipher the connection between her late father and Zero Game. Her opponents should beware of underestimating her, as Hanna Yoo is no amateur in Zero Game.