In a bustling modern-day Japan, a deadly new virus begins to spread rapidly, causing panic and chaos. The virus, a highly contagious airborne pathogen, exhibits symptoms similar to the common flu but quickly escalates, leading to severe respiratory failure and death. Amid this escalating crisis, we follow the experiences of a dedicated young doctor who desperately seeks a cure, a determined nurse on the front lines trying to save lives, and a bereaved woman grappling with her personal loss and societal breakdown. As hospitals overflow and the death toll rises, the government places cities under quarantine, intensifying the tension and fear among the populace.

Parallel storylines unfold, highlighting the collective struggle and response to the epidemic. Scientists race against time to develop a vaccine, facing bureaucratic obstacles and ethical dilemmas. Citizens find themselves gripped by paranoia and distrust, with the breakdown of social order leading to violent confrontations and acts of desperation. Authorities enforce strict measures that challenge ethical boundaries, and survival instinct pushes individuals to their limits. Set against a backdrop of urban decay and human suffering, the narrative delves into the core of human resilience, exploring how society grapples with an existential threat and the lengths people will go to protect their loved ones.