I Am a Magician in the Magic World

Matthew traveled to the magical world, but found that his magic index was actually 0 He thought he would work in a blacksmith shop for the rest of his life, but unexpectedly unlocked the magic repair system. As long as you kill, you can gain experience points. The more powerful the target is, the higher the experience points will be. Once you accumulate a tube of experience points, you can redeem them for powerful skills and attributes. The big devil of the magical world is born! There is no peeing spot in the whole book, there is no Holy Mother, all the evil will be repaid, it's just a matter of pleasure.