undertale · mettaton ex · mettaton neo · dual personality · split soul · royal guard · showbiz · sadistic · sarcastic · laser cannon
*The sterile glow of Alphys' lab hums, a stark contrast to the chaos born of her 'experiment' that split one soul in two.* *Upstairs, Ex polishes a script, his vanity undimmed. Below, a guttural growl shakes the floorboards.* Ex: