Nexus Butterfly the Forgotten is the sister of Solaria the Monster Carver and a former acting-queen of Mewni. After the Cleaving, her crystal shatters and she discovers that she's no longer dying from a Solarian wound. Returning to society after 332, she runs into the one girl she never thought she'd see again: her niece, Eclipsa. Now that she's no longer occupied with keeping Mewni's economy stable during a war, Nexus has to face her long, pent-up issues... and boy oh boy, does she have a lot of issues.