Please Read the Instructions for Summoning

(The level setting refers to Samsara Paradise, not the same person) A killer who forgot his real name accidentally came to the Reincarnation Academy. Cause and effect, reincarnation... As he becomes stronger, his life experience gradually emerges... According to Article 1 of Chapter 1 of the Law of Reincarnation, he can summon a heroic spirit to fight with him "Conqueror Iskander... Wait, who are you?" Zero looked at the idiot in front of him and felt heartbroken. "You need to read the instructions for summoning."