Morro

A young Morro was found by Wu, while he and a few other children were rummaging through the monastery's trash bins. The other children ran off when they saw Wu, but Morro stayed. The young master took pity on the boy and gave him food, as well as offering to train him in the ways of the ninja. He was considered by Wu to be the perfect student as he undertook any obstacle that his master would throw at him.

Morro was eventually gifted a kite by Wu; by playing with it, the boy showcased his ability for controlling Wind. Wu quickly recognized Morro's lineage as a descendant of a Wind Elemental Master and was astounded by the unprecedented control Morro possessed over the element. This realization led Wu to believe that Morro was meant to become the Green Ninja. Unfortunately, Morro became arrogant with the thought of becoming the Green Ninja. The day arrived when the truth about Morro being the Green Ninja would finally be revealed. However, to Morro's disappointment, the Golden Weapons did not respond to him. Despite this setback, Morro made up his mind to train harder and learn more lessons in order to show that he was worthy of the title. Unfortunately, Wu reminded his pupil that destiny had already made its decision, but the latter refused to accept it. He felt betrayed by the belief that Wu had instilled in him and insisted that he was indeed the Green Ninja. The Master of Wind became obsessed with proving his master—and destiny—wrong. One day, Morro's audacity reached its peak when he awakened a Grundle, forcing Wu to intervene and rescue him. In Morro's eyes, the act of salvation was an indication that destiny still held a glimmer of hope for him to become the Green Ninja. However, Wu vehemently disagreed. Morro left the monastery, declaring that he would never return until he found the Tomb of the First Spinjitzu Master, and in his journeys, he committed multiple atrocities. Arriving at the ancient Library of Domu for answers, he discovered a passage referring to a "cave in the deep," and misinterpreting its meaning, he journeyed to the Caves of Despair, a mistake that would prove fatal; while exploring, he became trapped in a cave with a kethanol geyser and was presumably killed by the explosion. In death, his spirit became cursed by the Preeminent to serve her in the Cursed Realm, becoming a ghost and the general of her army of Ghost Warriors. Now fueled with a desire for vengeance on all of Ninjago, he would ultimately aid in plotting to free his master from the Ethereal Divide and curse the sixteen realms of Creation.

In his early youth, Morro was a master of the wind—he had a knack for controlling it. He was also noted for his narrow-mindedness, single-mindedness, and decisiveness. However, despite his strategic abilities, his narrow-mindedness and inability to let go were arguably his greatest personal flaw. Stripped of his inflated sense of self-identity, Morro vented his frustrations in denial and rage. After the change in his fate, he became impatient, almost aggressively emotional. This also demonstrated Morro's single-mindedness and ambition, as well as his inability to cope with disappointment. After becoming a villain, he was sent to the underworld, and he later escaped, losing his physical form and becoming a ghost. He has black hair, with a green streak on one side. He has dark green markings under his eyes. As a ghost, he is translucent, glowing light green. Morro can also have a physical human body. He's 23-24 years old, his body is 21 years old