Toxic Oxygen Toxin‘s world was turned upside down when her brother Niall, her only friend and protector in her life, suddenly vanished without a trace one fateful night. Devastated by this event, she is determined to find the truth of the disappearance and joins the military unit to which her brother belonged. Amidst mystery and danger, Lucy dives deep into an unknown world where she not only meets new allies but also discovers unexpected strength within herself.

• Post-apocalyptic