Manga

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

The protagonist is an ordinary soldier from an empire at war who gets used as a guinea pig for genetic engineering experiments, turned into a monster and put into cryosleep.200 years later he wakes up in a sword and sorcery world. The empire is gone