I'm fighting back in the ninja world with spells

Introduction: Thank you for the invitation. I am in the ninja world and have just gotten off the hospital bed!Surrounded by a group of men in black robes with wild and crazy eyes, there was also a gray man with a big back named Hidan who was laughing wildly at him.Just because he was the second 'lucky person' to successfully 'survive' and obtain [immortality] in this divine selection ceremony.Shinji Akagi was a little numb... and what made him even more depressed was that after the transformation, his body had no chakra, but he could no longer practice any ninjutsu.This means that he will become the first immortal and useless ninja!But the activation of a strange system brought new changes to his life.Can't learn ninjutsu?piece of cake!There are all kinds of magical spells for you to choose from!Red blood manipulation, cud soul spells, ten kinds of shadow spells... everything is available.Wait a minute!Why is there still [Cursed Wind Cave]? !This counts...