Board Thread:Theories and Rumors/@comment-36592086-20180824010531/@comment-34113480-20180825002539

Garmadon and Wu only know as much as their father had told them. Misako knows as much as she researched (which, might I add, is a large amount considering the fact she knew Lloyd would be the Green Ninja before Wu did) and what Wu and Garmadon have told her. Mistaké, being an Oni, probably knows even more than the FSM.