Personality-wise, Alastor is charismatic, vain, and often takes advantage of others, bending or breaking the rules as he sees fit. When Helsa turns into Alastor, her memories, thoughts, and personal

Once, in the dank realm of Hell, there existed a malevolent demon named Helsa von Eldritch. Her dark grey skin, long white tentacle-esque hair with dark spots, and neon green, slit-pupiled eyes made her a menacing figure. She wore a hot pink coat with neon green fur accents, a dark grey pencil skirt, black heeled boots, and sharp neon green teeth behind black lips. Her visage radiated cruelty, perfectly reflecting her intentionally vile nature. However, one fateful day, Helsa's transformation began. She had stumbled upon an ancient, cursed radio buried within the depths of Hell's archives. Drawn by an unknown force, she switched it on. A haunting broadcast echoed through her ears, filling her with relentless static that grew louder and louder until she could hear nothing else but the voice of the 'Radio Demon'—Alastor. Suddenly, Helsa's body began to contort in agonizing ways. Her figure shrunk, the height regression halting only once she was around seven feet tall. Her dark grey skin lightened to a pale beige, absorbing and transforming in texture. Her eldritch appearance began to dissolve, the grotesque eyes and mouths retracting and disappearing into smoke. Her hair, once long and white with dark spots, shortened into a pinkish-red bob cut with black tips. From the top of her head, two small black antlers sprouted, bringing forth excruciating pain as they grew. Her face contorted itself into an eternal, broad smile, revealing a mouthful of sharp yellow teeth. As her limbs thinned out into Alastor’s slim, dapper frame, Helsa’s dark teal sclerae morphed into a sinister red. Her neon green irises shifted to a menacing bright red, their slit pupils narrowing into more human-like circular pupils. Her forearms and lower legs faded to a dark grey, and her toes and fingers turned a deep crimson, shifting into red hoofed toes and the iconic red-tipped fingers. Her hot pink coat transformed into a red pinstripe coat with dark red lapels. The ensemble beneath the coat changed into a bright red dress-shirt adorned with a black cross and long black dress pants with matching bright red cuffs. Her black heeled boots morphed into black pointed-toe boots emblazoned with red deer hoofprints. Simultaneously, Helsa's fierce mind grew cloudy, her memories, emotions, and personality being dragged into the abyss. The cold, calculating cruelty vanished, giving way to the cocky, theatrical malevolence of Alastor. Her intellect, pride, and history dissipated, overwritten by Alastor's radio-themed aesthetic and personality. A new consciousness took over completely. Helsa von Eldritch was no more—every trace of her existence erased and replaced by Alastor's essence. He blinked, adjusting to the new world, the once-familiar face of Helsa's past now alien to him. Alastor gazed into the reflective glass of the ancient radio, and a wide, pleased grin spread across his sinister face. He adjusted his black knotted bowtie with a red center and picked up the cane with the sentient vintage-style microphone. A maddening laugh, rich and resonant, echoed from his lips as he embraced his identity as the Radio Demon. The transformation was complete. Helsa was forever forgotten, and Alastor, with his vivid memories and boundless cunning, stood, ready to sow chaos in Hell—even more capably than before.

Helsa von Eldritch stood tall, looming over the inhabitants of the Hazbin Hotel. The demoness was a figure of sophisticated, scheming malice. As she smirked, her eyes glowed with a neon green, accenting her already fearsome grey complexion. Her style was flamboyantly malign, clad in a hot pink coat, dark grey skirt, and killer heeled boots, all adorned with neon green trimmings. Her inherent, eldritch nature allowed her to morph into terrifying forms, her wrath echoed through mouths and eyes sprouting from her body. However, a strange event was about to occur – a transformation would take place. What began was a slow and subtle change in the very makeup of Helsa. Her form began to waver, flicker and warp. Her height receded, diminishing from her previously towering stature. Her once long, white cephalopod-like hair began to shorten, taking on a pinkish-red hue. Her once regal and female form shifted and contorted, seeming to shrink and stretch at the same time as her body began to assume a masculine shape. Her dark grey skin morphed into a light beige tone while her once enviously curvy body rearranged itself into a slim, straight figure. A barrage of mental and emotional changes overtook her, or rather him now, washing away every memory of Helsa von Eldritch and replacing it with the life of Alastor. The pink coat and skirt disappeared, replaced by a formal pinstripe suit of red and white, along with a matching tie and dress shirt. His appearance was far from mundane, antlers sprouting from his head and black-tipped tufts of hair giving him a resemblance to a deer. His long and thin legs merged into hooves, the transformation reaching its conclusion. The new Alastor smiled broadly, exposing a set of newly-formed sharp, yellow teeth. The neon green glow of the eyes was replaced by a piercing red, the sclerae darkening to a wicked shade. Almost as if a signature to the transformation, a dark-red oval-shaped monocle found its way to his right eye. Where malice and deceit once lurked now resided a completely new personality - Alastor was playful yet deadly. A voice that could both soothe and cause unease echoed from his throat. Grasping a peculiar cane topped with a sentient microphone, it seemed the transformation was complete. The demon looked down at his changed self, feeling a surge of empowerment. He was no longer Helsa, but Alastor, a creature unlike any other in Hazbin Hotel. The very essence of Helsa had vanished, consumed by the eatryotic spirit of Alastor. His mind buzzed with the memories of a different life, a life that only belonged to the sinner demon, Alastor.