Harumi

Harumi, alternatively known as the Jade Princess, The Quiet One, and Kabuki Mask, is the leader of the Sons of Garmadon, former right hand to Emperor Garmadon, and leader of the Council of the Crystal King. She is the main antagonist of Sons of Garmadon, and a major antagonist in Hunted and Crystalized.

When Harumi was young, her parents would be killed during the attack on Ninjago City by the Great Devourer. She was later adopted by the Emperor and Empress of Ninjago, but she began to hate the Ninja for what they had done, and admired Lord Garmadon. In her young teens, she founded the group the Sons of Garmadon, hell-bent on resurrecting the Dark Lord. Her plan was a success, and she ruled with an iron fist as the right hand to the now Emperor Garmadon. She would later be killed after Garmadon showed his wrath on the city.