Ray (Ninjago)

Kai and Nya's Father is a minor character in the world of LEGO Ninjago. He was the best friend of Sensei Wu, and the father of Kai and Nya by an unknown wife.

History
Back in his youth, he used to fight alongside Sensei Wu and Lord Garmadon in many battles. Like his son, Kai, he was headstrong and reckless.

One night, he and Sensei Wu were searching for samurai bandits, but when he spotted the silhouettes of scarecrows, he mistook them for the bandits and sprung into battle. The next morning, he was forced to apologize to the farmers that owned the scarecrows for his mistake.

In fear of his own demise, Sensei Wu made a map to the Golden Weapons, giving it to his friend as he knew he could be trusted.

Later, Sensei Wu wanted him to become a ninja, though he declined to stay at home with his wife to take care of their children and work at Four Weapons Blacksmith. When he passed away, Kai and Nya became the new owners of his blacksmith shop.