The young man who reincarnated as the boy Leon is bewildered by the inconvenient life... After reincarnation, Leon tries to learn magic in order to lead a more comfortable life. --And he finds that he was a cheat ability user who could use not only 'fire, water, wind, earth, and healing magic' but also physical enhancement!? Utilizing knowledge from the modern world, he aims for a prosperous life in this slow-life.