Yumi Nakatsuka is the Zodiac Yellow Ranger in Power Rangers: Rebirth. She is a karate champion and former student at the Wind Ninja Academy and trained under the tutelage of the now dead Tori Hanson. She greatly admired Tori and thought of her as an older sister, she also had admiration for Shane's humility and believed that Dustin was a wisecracker, but great teacher. She is Japanese-American and the team's heavy muscle. Yumi is also a tough, no-nonsense warrior, but a good hearted person.