外道魔術師の憑依譚 - 最強剣士を乗っ取ったら、自分の身体を探すことになった

そろそろ体を変える時期が来ています。Its about time I change bodies. A magician who lived for hundreds of years by taking the body of another was taking a stroll through the forest in search of a new vessel when he found a young boy who was on the verge of dying with a great number of slaughtered monsters before him. With the condition that the magician would protect Erena, the boys companion, he made a deal that they would coexist in his body. However, what the magician did not know was that the boy was the swordsman that had been expelled from the heros party.