Takizawa Akira, a young man who previously erased his memories to protect himself, returns to Japan to uncover his past and reveal the truth behind his mysterious reappearance. Armed with only a phone loaded with 8.2 billion yen and instructed by a woman named Juiz, he finds himself in a high-stakes game where he must protect Japan from economic downfall. Joining him is Saki Morimi, who grows concerned about Akira's safety as he gets deeper into the shadowy organization called Seleção, and its morally ambiguous mission to save the nation by any means necessary.

As Akira delves into the complexities of his task, he discovers the twisted motivations of the other Seleção members, each driven by their interpretation of saving Japan. With time running out, he must navigate through political intrigue, hidden agendas, and a fraught public atmosphere that questions his true identity. Saki and Akira's friends work tirelessly to support his effort, piecing together clues that might save him from a dangerous fate. Suspense builds as Akira inches closer to uncovering a conspiracy far greater than he anticipated, forcing him to confront hard truths about his past and the nation's future.