Harumi's Mother

Harumi's Mother was the biological mother of Harumi. She, along with her husband, was killed by the collapse of their apartment complex, which was caused by the Great Devourer during its attack on Ninjago City during "Day of the Great Devourer." Her death, along with her husband's, would deeply affect Harumi, who managed to survive the collapse.

Pre-Season 8
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 parents managed to get Harumi into the elevator, much to her distress. As the elevator doors closes, the apartment collapsed, killing both of Harumi's parents.