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Kanzaki Mitsuya is a high school student who enjoys video games. On one particular day of his boring life, a strange email arrives on his mobile phone. It is an invitation to the game known as [Innovate]. Out of boredom, Mitusya decides to register and participate in the game…
A massive tree higher than a mountain erupts one day in the middle of a city. From it comes red apples that cure all illness and disease. Humanity rejoices until it discovers that they also cause some people to transform into murderous monsters. However, some are not only immune, but receive rare powers they can use to fight off the creatures. But what about the transformed - must they die or can they somehow be saved?