Zenbu: The Legend of the Dark Dragon

In a world where dragons exist and have magical powers known as gifu, everything changed when an asteroid crashed on Earth. The impact gave the dragons even more powerful and unique abilities, and they loved it. However, when humans were created, the dragons realized that they had to share their power. They moved to the sky and created a city called Heiwa, where they decided to share their gifu with humans. The people who received the gifu became known as ninjas, and ninja clans began to be...