OPTIC After losing his parents, Katsu decided to live as a normal human with his siblings. In a world where people can gain extraordinary power from a magical crystal called Optic, people who gain power becomes very vulnerable. As a result, the world becomes very dangerous and many villains will try to cause damage to the world. Unfortunately, Katsu is one of the citizens affected by the evil deeds of the villains. What will Katsu do to protect himself and the people he loves?

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