To gather the 500,000 tuition fee for Astral University, apprentice Demon Slayer Soren goes undercover to hunt a Succubus. However, on the night of his eighteenth birthday, he is struck by a meteor and awakens the Azure Cloud System left from his past life. He obtains the S-rank Body of Thunder and a Nine-Revolution Body Pill, breaking through to the peak of the tenth level of Martial Apprentice overnight!