In this story, the protagonist is a lonely high school senior who has grown tired of his quiet and uneventful life. One day, several new people enter his world, including his long-lost childhood friend, Sayori, who is far from being the person she appears to be. Before long, he finds himself drawn into the shadow war between secret service agents and a criminal organization known as The Halictidae. Will you embrace the danger in pursuit of adrenaline, or keep your distance for the sake of safety? The choices you make will determine how the story unfolds.