Madan Senki Ryukendo

An incident occurred in Akebono City where various things were gnawed. People begin to fear at the sight of ancient demon creatures flying in the sky. But, Kenji had a more frightening cause of worry. It is said that his older sister who is scarier than the demon coming for a visit. If he doesn't show his older sister how well he is doing in town, he'll be taken back to the countryside. Kenji, who doesn't reveal that he is RyuKenDo, falls into a pinch. With flying demons appearing here and there, his older sister finally came to town!