Atmospheric Organisms

"Atmospheric organisms are organisms that live within 50 kilometers of the earth's surface. Almost 99% of their bodies are air and they float in the air like jellyfish in water. These organisms are closely related to weather changes and can promote the formation of natural phenomena such as clouds, rain, thunder and lightning. Some extremely large atmospheric organisms can even cause serious natural disasters such as typhoons and thunderstorms. Some special people can control these creatures. For example, by attaching them to this broom, they can fly on the broom..." The blond man in front of him was explaining the knowledge of "atmospheric creatures" incessantly, but at this moment, Safo's attention was entirely focused on the colorful broom in the man's hand—— What kind of atmospheric creature, this is magic no matter how you look at it! ! ! "That's about it. Is there anything else you want to ask?" "Uh..." Safer wanted to ask so much that he didn't know where to start. Seeing this, the blond man handed a few pieces of paper to Savo and asked: "If there are no problems, do you want to join our association?" Safo was shocked: "Can I join?!" "Okay, you are very talented." Yay! Magic Association! I am coming! Safo glanced at the contract casually and signed his name. He has begun to look forward to riding a broom and dueling with dark wizards like Polyhart, and finally saving the world... But a series of strange phenomena made Savo wonder. Are atmospheric creatures really low-level creatures like jellyfish, as the blond man said? What exactly are they?