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Average high school student Mikagami Kouji is a hardcore gamer. One day he gets isekai'd and he only gets the skill "copy" which is apparently useless but we all know it's secretly OP or something. He's enslaved to be a gladiator by his summoner, the

Read Seres's Resolve: The Battle for Humanity, My System Is Serious, My System Is Very Serious, , I'll never stop fighting tooth and nail to safeguard humanity and all people under heaven. It's time to power up the system once more, ramping up its ca