In the near future, a virus called the LEUP has infected half the population. The resulting war between the people of Liam, known as the infected, and the people of Galoum, known as the immune, becomes a bloody and brutal affair.
When a mysterious army called the Hakkinen emerges to quell the war between the two countries, they adopt children of war to aid them. Oumi and her friends are enlisted to help find a cure and end the bloodshed.