In a distant future, the discovery of a psionic hormone in the human brain grants individuals extra-sensory powers, transforming society. However, chaos erupts as deranged mutants known as Others rain down, driven by a craving for human brains. Conventional weapons prove useless against them, leaving humanity's survival in the hands of psionics—the gifted individuals recruited into the Other Suppression Force (OSF), our final defense. Embark on a dual narrative as you choose either Yuito Sumeragi, an enthusiastic recruit from a prominent family, or Kasane Randall, a renowned and enigmatic scout. As their paths intertwine, you will uncover the mysteries of a Brain Punk future interlinking technology and psychic prowess.