A world that has collapsed because of pollutants which gave birth to a zombie virus. And those who have adapted to such a world. 'Amina', is a town where both high resources and the excellent doctor 'Simon' can be found.

However, 'Simon' disappears and the 'Amina' people fall into despair. Then 'Ruby', born and raised by such an 'Amina' slowly begins to appear...


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