One Piece: I Am Black Tortoise

When Huangfu Yuze woke up, he found himself inexplicably buried in a deep pit. If he hadn’t woken up early, he would have been buried alive long ago. It wasn’t easy for him to escape from the deep pit before he realized that he had transmigrated. The system that had transmigrated with him had automatically shut down after giving him the Black Tortoise bloodline and a title. Before he could recover, he was beaten by a giant that descended from the sky. The key was that the other party could transform into a divine dragon. Then, there was a divine dragon with a flaming pterosaur. A thunder dragon and a mammoth had surrounded and beaten up a Black Tortoise for nearly ten days. In the end, everyone came to an agreement to help each other and explore the world together...