Kaya is the oldest daughter of Ray and Maya. She doesn't act like other girls in her village and don't do great with the matchmaker. When Ninjago is threatend by a man who calls himself Overlord all men Ninjago must go to war. But Ray isn't in shape for it. So Kaya takes his place by pretending to be a boy named Kai. She meets the tiny dragon Lloyd that is sent to make her change her mind. In the army she also meet Jay who wants to find a girl that like his humor, and Zane that have metal prosthesis for his arm and leg who wish to find a girl that like him even if he's weird. She also meets the leader Cole that is hard and strict. Will Kaya help Ninjago? Will she be reveald? And what happens when fellings start to blom? read to find out. (I DON'T OWN NINJAGO, DISNEY OR MULAN)