Wu and Garmadon are the 4000-5000 years old sons of Ninjago god. Why aren't the people of Ninjago aware of them? Why haven't they been kidnapped and dissected by the government? :
Lego® NJO467 minifigure Ninjago, Sensei Wu teen
Wu | Ninjago Wiki | Fandom
Prepare for Anything! - LEGO Ninjago - WU-CRU - YouTube
Ninjago: Wu (Digital Ver.) by GieRoSajie on DeviantArt
LEGO minifigures Wu | Brickset
Ninjago: Wu's Teas - Series 1 - Episode 1 - ITVX
Amazon.com: LEGO Ninjago 70734 Master WU Dragon Ninja Building Kit : Toys & Games