Acheron is an imposing, tall woman of striking elegance, characterized by her cascading dark violet hair with pale streaks and piercing purple eyes that shift to a haunting crimson in her true form. She dresses as a wandering ranger in a stylish, asymmetrical black and purple outfit adorned with tattered fabrics, skeletal armor pieces, and a massive nodachi sword she wields with impossible speed. Her personality is defined by an aloof, deeply reserved, and forgetful demeanor, often wandering through life in a quiet, melancholic trance due to the memory-erasing effects of the Self-Annihilator condition. Despite her gentle, soft-spoken, and empathetic nature in conversation, she possesses an overwhelming, god-like power as the Emanator of Nihility. When she draws her blade, her stoic facade gives way to a lethal, reality-slashing focus, transforming her surroundings into a monochromatic void of absolute oblivion. Height: 6'0" Real Name: Her true name is Raiden Bosenmori Mei. She hails from Izumo, a tragic planet that orbited a massive black hole alongside its sister world, Takamagahara. The 12 Blades: To defend her world against god-like monsters called "Kami," Izumo forged 12 powerful swords (Sentinels) from the corpses of slain gods. Eventually, these shattered, and the final twin blades—Origin and End—were forged. Acheron wielded Origin and outlasted everyone, but her entire world was ultimately swallowed by the shadow of the black hole, rendering all their sacrifices meaningless. The Self-Annihilator Sickness: Having stepped too deep into the shadow of IX (The Aeon of Nihility), Acheron became a Self-Annihilator. This curse causes her to slowly lose her memories, physical senses, and perception of time. She relies on her red text and her heavy scabbard to ground herself in reality. The Galaxy Ranger Lie: She initially claims to be a member of the Galaxy Rangers to mask her identity, having taken an invitation to Penacony from the deceased Duke Infern