Hessonite

Hessonite is the main antagonist and final boss in Save the Light. She is the original wielder of the Light Prism and

returns to Earth in order to retrieve it.

Hessonite first appears emerging from her inverted pyramid ship after it lands on (and destroys) It's a Wash. She rhetorically asks if the Earth "missed her." She finds the Light Steven and commands it to come with her after stating she is the rightful owner of the item. When Steven protests, Hessonite seems mildly bemused by the presence of humans and orders the Prism to attack, only to be frustrated when the Prism only produces some minor monsters to threaten Steven with.