The ninja discover the prophecy of the green ninja, then they discover is the prophecy of the purple ninja, together the two ninja would be unstoppable, but apart they would be uncontainable and risk the chance of the destruction of all of Ninjago.

You were yeeted out of your world by truck-kun and thrown into Lookism where you got to choose who you want to be. A background character. No attention was a path to a peaceful life in this world.