Master wu

Master Wu is the wise, elderly mentor of the ninja and the Master of Creation. He is the First Spinjitzu Master's second-born son, Garmadon's younger brother, Misako's brother-in-law, and Lloyd's paternal uncle. Wu grew up learning the art of the ninja alongside his older brother, Garmadon, who was infected with evil. They fought together as a team against evil for many years, until Garmadon's corruption completed and he was subsequently banished to the Underworld.

Around a decade later, Wu trained a group of teenagers in the ways of Spinjitzu so they could protect the land his father created. Wu guided the ninja in many battles against his brother, the Serpentine, and the Overlord. When the Nindroid crisis began, Wu was corrupted into a cyborg but was purified after the Digital Overlord was vanquished. After the ninja went to a mysterious island to save Zane, Wu joined the Elemental Masters to fight Chen and his Anacondrai warriors.

After the war's end, Wu's first pupil, Morro, escaped the Cursed Realm. Wu trained Nya to harness her element, allowing her to destroy Morro's master, The Preeminent. Shortly after, Nadakhan ravaged Ninjago and trapped Wu in the Sword of Souls, though these events were undone by Jay's final wish. On the Day of the Departed, Wu was met with a revived Morro, who helped Wu reunite the ninja during Yang's scheming. Wu later confronted Acronix, who struck him with the Forward Time Blade that caused him to rapidly age. Though his health was restored by the Reversal Time Blade, he sacrificed himself in a bid to defeat the Time Twins and was lost in time. The loss of Wu left Lloyd in charge of the ninja, and they made it their goal to find Wu.

A year later, he was found turned into a baby due to his exposure to the Reversal Time Blade, and kidnapped by the Sons of Garmadon until he was rescued by Cole. Little Wu was with the original four ninja aboard the Bounty when they were almost crushed by the Colossus, until they used Traveler's Tea to save themselves, ending up in the Realm of Oni and Dragons. Marooned, he grew up again while helping his students to fight Iron Baron and the Dragon Hunters and find a way to return to Ninjago. After Iron Baron's defeat, Wu proves himself worthy to receive the Dragon Armor from the Firstbourne. He became the Dragon Master^[1] and used the Firstbourne to get himself and his four students back to Ninjago in time to help Lloyd, Nya, and those left behind end Garmadon's rule and take down the Colossus. Sometime after the battle, he returns to his normal age and reclaims his place as the ninja's teacher. Sometime after, he was present in the arrival of the Oni. He aided his brother and students in performing the Tornado of Creation to vanquish the Oni.

Months after the Oni, Wu's past comes back to haunt him yet again when the ninja inadvertently released the Serpentine sorceress, Aspheera, who knew Wu as the Treacherous Deciever, from her thousand-year imprisonment. Once Zane is banished to the Never-Realm after saving Wu from a blast from Aspheera's staff, Wu's attempt to go after him alone is thwarted by the ninja, and he is left behind with P.I.X.A.L. in Ninjago. They attempted to go after them by using Traveler's Tea, but inadvertently release the Preeminent from the Departed Realm. P.I.X.A.L. was able to defeat it in battle and send it back. Soon after, he reunited with them, including Zane.

Wu eventually aided Zane and P.I.X.A.L in finding Milton Dyer while the ninja sought Unagami inside Prime Empire. With Jay and Dyer successfully converting Unagami, Wu was able to reunite with the previously cubed ninja, resurrected along with all the other inhabitants of Prime Empire.

After the Ninja freed the trapped gamers, Wu started to feel left out and think that the ninja no longer needed him. He was then forced by Misako to accompany the ninja to the Kingdom of Shintaro. Adventuring with Cole, Vania, and the Upply, Wu rediscovers his role as mentor when he encourages Cole to never give up when things seem hopeless. After Cole defeats the Skull Sorcerer, Wu is reinvigorated and steers the Destiny's Bounty in search of he and the Ninjas' next adventure.