Ningia

Ningia is a ninja from decades ago who became a Nighlok after making a deal with Triplikorn. She has a rivalry with Yugi.

Biography
Decades ago, Ningia's ninja clan was defeated by Yugi's ancestor and disgraced. Seeking power to reclaim her honor, she made a deal with Triplikorn; forever give up her human name to become a Nighlok, and he would give her power to take her revenge. The deal was made when she saved his life when he was defeated and sealed by the combined power of the 13th Samurai Rangers and Yugi's ancestor. For decades, they rest in a cave on the shore of the Sanzu River until Triplikorn had regained enough of his power. When the time was right, they boarded Master Xandred's ship, and swore loyalty to him.