|"While we're stuck waiting, why don't you tell us who's really under there?"
Harumi's mother was a resident of Ninjago City. She and her husband were killed by the collapse of their apartment complex, which was caused by the Great Devourer during her attack on the city. Her death, along with her husband's, would have a profound effect on Harumi, who managed to escape before the collapse due to her mother sacrificing herself for her. Realizing that Lord Garmadon was the one who had killed the Devourer, Harumi went on to worship and resurrect him, all of which was heavily caused by her parents' fates.
During the Great Devourer's attack on Ninjago City, Harumi and her parents were forced to flee from their collapsing apartment complex. However, there wasn't enough room left in the elevator for the three of them, so Harumi's father managed to get Harumi into the elevator, much to their daughter's distress. Harumi's mother grabbed her daughter's hand and promised they would meet outside once they got out in an attempt to soothe her. As the elevator doors closed, the apartment collapsed, killing both of Harumi's parents.
When Garmadon and Skylor fought for control of the Colossus, Harumi witnessed a boy in the same situation she was in when she was younger. Remembering her parents, she decided to help the family escape. This ultimately lead to Harumi's death when the building collapsed.
At one point, Nya imagined Harumi and her parents living in small village that was attacked by the Skulkin and saved by Nya in an updated Samurai X Mech. Being a daydream, this depiction of Harumi's family may have been inaccurate.
- 92. "Saving Faith" (flashback)
- 6. "Samurai X-Treme" (daydream)
- She is simply referred to as "Mother" in the credits.
- When asked if Harumi's parents died via devoured by the Great Devourer or crushed, Tommy Andreasen simply answered "Undisclosed."
- She and young Harumi have the same clothes.