Nya

Nya is the Elemental Master of Water, the younger sister of Kai and the Water Ninja. While working alongside Kai in their father's blacksmith shop, Nya was abducted by the Skulkin and used by Lord Garmadon as bait to lure her brother to the Fire Temple. After being rescued, Nya moved in with the Ninja, eventually relocating them to Destiny's Bountyafter the monastery was burned by the Serpentine. She soon becomes tired of being excluded from the team and creates the identity of Samurai X to fight the snakes on her own. She grew so confident in this role that even when Sensei Wuconsidered training her to be a full-fledged ninja, she declined.

When the Ninja set sail for the Island of Darkness, Nya accompanies them and while there, she designs the Fire Mech. However she is captured by the Stone Army and is turned evil by Garmadon through the use of Dark Matter. Yet after the defeat of The Overlord, she is purified of the darkness and happily watches the sunrise with the rest of the team. As time went on, Cole began to show growing affection for Nya despite Jay's admiration for her. This love triangle grew throughout the Nindroid conflict up to Zane's apparent demise, which resulted in Cole growing closer to her - much to Jay's dismay. Soon after, the Ninja and Sensei Garmadon traveled to Chen's Island, with Nya journeying there alongside Dareth several days later. Nya aided the Ninja throughout the Tournament of Elements and flew Destiny's Bounty 2.0 into battle during the Second Serpentine War.

With the Anacondrai Cultists banished to the Cursed Realm, Nya trained to become the water Ninja with the aid of her companions. Initially the training troubles her, but she eventually embraces her role and her element begins to grow. When The Preeminent arrives to take over the Sixteen Realms, she realizes her biggest struggle has been her fear of failure, and by unlocking her True Potential she drowns the vengeful monster, saving Ninjago and her friends, yet, with the destruction of the Cursed Realm came the deaths of all those inside it. Consequently, a vengeful djinn, Nadakhan, freed his crew of pirates and started trapping the Elemental Masters in the Sword of Souls. Nya became a target for Nadakhan, as she resembled his deceased lover and the djinn wished to marry him and attain infinite wishes. Nya grew closer to Jay during their battle with the Sky Pirates, and during the climactic battle in New DjinjagoNadakhan was weakened by a dart containing Tiger Widow Venom. However, Nya was also hit by the venom, and died in Jay's arms. Due to his final wish, recent events were undone and Nya was never killed. Thus, she and Jay began their relationship anew.