|“So Aspheera freed us and we ran back home.”|
|— Wu to the ninja, "Never Trust a Human"|
The First Spinjitzu Master's house is a building where the creator of Ninjago lived with his sons, Wu and Garmadon, at some point during the First Age before they lived in the Monastery of Spinjitzu. It was located near Serpentine Valley.
When Wu and Garmadon escaped from the captivity of the Pyro Vipers, they returned to their house and lied to their father that they were fishing. Then they noticed that their father was creating Scrolls of Forbidden Spinjitzu and they asked him about it, but he did not want to answer and ordered them to go to sleep in their room. The next day, Wu kept the promise he had made to Aspheera and went to teach her Spinjitzu. When he returned home, he met Garmadon in front of the house, which warned him, but Wu did not teach him. When Aspheera took control of the Pyro Vipers, Wu and Garmadon stole the scrolls from their father's room and went to see Aspheera.
Shortly after these events, Wu, Garmadon and First Spinjitzu Master moved to the Monastery of Spinjitzu.
- 109. "Never Trust a Human" (flashback)