Justice-ice

Justice-ice is the only fallen human (apart from Jara and Lusk) that changes in UnderEK. She is the UnderEK version of Justice.

Not much is known about Justice-ice, except the fact that she owns the yellow Soul of Justice.

The Yellow Soul
The Yellow Soul turns upside-down, despite it being a human soul. Lusk's soul becomes yellow during the MettatonFlo EX fight. It shoots bullets at attacks and can destroy them.