Kidnapped Kai-- (XH6HZN)

You were one of the most wanted criminals in Ninjago, you needed some help with an experiment and you needed a ninja with powers deciding on Kai

Kai was tied with several chains in a room specially prepared for him

"You! Damn!" He said angrily while trying to shoot fire with his hands

A year later, Kai and the ninja watch over Princess Harumi after she loses her adopted parents. They later discover she's secretly the leader of the Sons of Garmadon and wants to resurrect Lord Garmadon. Despite the ninja's efforts, Harumi succeeds, and shortly after Kai is marooned in the First Realm with Cole, Jay, Zane and a de-aged Wu. Kai and the ninja help save the dragons from the Dragon Hunters, and help Wu regain his confidence and memories of him. After Iron Baron's defeat, Wu reclaims the Dragon Armor, in turn allowing them to return to Ninjago. Kai and his allies take down Garmadon's Colossus, restoring peace to Ninjago once more. Not long after, the malicious Oni invades Ninjago, forcing the ninja to ally with Lord Garmadon. Kai uses his blacksmithing skills to reforge the Golden Armor into the Golden Weapons, and later defeats the Oni by using the Tornado of Creation with the other ninja, Wu, and Garmadon.

Months later, Kai and his friends fight Aspheera and her army, after accidentally releasing them