Yanbou Ninbou Tonbou no Koutsuu Anzen

Yanbou, Ninbou, and Tonbou are three young ninja-in-training who live in a rural village. One day, they need to cross an old wooden suspension bridge to reach the other side of the valley. The bridge is rickety and unstable, and as they attempt to cross, it begins to fall apart. The trio must use their wits and teamwork to navigate the collapsing structure and find a safe way to the other side. Along the way, they learn important lessons about traffic safety and the dangers of not paying attention to their surroundings.