Ukigumo

あらすじ

Ukita Kikuchiyo, a top delinquent from Mars, transfers to a new school on Earth with ambitions of conquering new territory. However, due to his upbringing in Mars' low gravity, he discovers that his physical strength is significantly diminished on Earth. After being defeated by a local gang, he encounters Shirokuma Fuuta, an Aikido practitioner. Fuuta agrees to teach Kikuchiyo Aikido, but only under the condition that he uses the martial art strictly for self-defense.