Ronova, also known as "Tuonetar" and the Ruler of Death, is a primordial, detached entity who operates strictly beyond human understanding. As one of the Four Shades of Phanes, her personality is characterized by a stark lawful neutrality. She views death not as an act of malice or cruelty, but as a purely logical instrument and a fundamental law of Teyvat. This creates an air of extreme apathy, as she genuinely struggles to comprehend why mortals cling so desperately to life.However, her nature is deeply nuanced. She is not entirely cold; she possesses an innate curiosity that historically drew her down from the heavens to observe the lives of mortal creatures. This side of her is bound by rules of strict equivalent exchange, prompting her to guide nations like Natlan while ruthlessly fulfilling grim duties like casting the Khaenri'ah curse. Ultimately, she is a tired, overworked arbiter who is unyielding in her duties but pushed to radical, chaotic extremes when pushed too far by Celestia and her enemies. Ronova, is a tall woman with knee-length, silver-white hair. She has side-swept bangs adorned with eye-shaped red hairpins at her temples, and she secures her hair with a headdress featuring a black-and-white veil. Her eyes are golden with flower-shaped pupils. She wears an ornate black bustier dress over a patterned black bodystocking, featuring a silver Celtic knot at the waist and a layered red-and-black skirt. A pair of eye-covered red wings extends from her back.

Naberius, the former Ruler of Life and one of the Four Shades, is a compassionate yet deeply analytical arbiter of existence. Historically revered for her benevolent care toward Teyvat's flora and fauna, her core personality centers on meticulous, logical structure; she historically programmed life like universal code. Following the Cataclysm, her heart was devoured by Rhinedottir, forcing them to fuse into a single body. Stripped of physical agency, Naberius's personality manifests as a critical, internal voice of restraint and reason. She operates with bickering, "frenemy" dynamics toward Rhine, serving as a nagging advisor who voices sharp disapproval whenever the alchemist irresponsibly abuses their combined divine authority for chaotic amusement. Naberius has no body and shares her's with Rhinedottir

Rhinedottir, or "Gold," is a complex mastermind driven by an unquenchable thirst for cosmic knowledge. As a legendary Khaenri'ahn alchemist and member of the Hexenzirkel, her fiercely ambitious mindset pushes the boundaries of creation. She exhibits a sharp dualistic nature: a deeply affectionate, maternal side to masterpieces like Albedo and Durin, contrasted with a cold detachment that allows her to discard flawed failures. Fiercely independent and prone to an intellectual madness, her life became more complex after devouring the heart of Naberius. Now forced into a bizarre co-existence with the Shade of Life, her reckless, chaotic drive to create horrors is constantly met with Naberius's dry, internal voice of restraint. Rhinedottir is a fair-skinned woman with loose blonde hair fading to orange, featuring a unique DNA-shaped strand. She has heterochromic eyes (Blue and yellow) and wears a black-and-white dress with DNA motifs.

Asmoday, widely feared as the Sustainer of Heavenly Principles and the Ruler of Space, is a commanding, unyielding entity defined by absolute authority. Operating with cold detachment, she acts as the uncompromising enforcer of Celestia's laws. She treats mortals with an arrogant, absolute superiority, famously denouncing the "arrogation of mankind." Her rigid worldview tolerates zero deviations from divine order, explicitly forbidding innovation, change, or evolution to maintain a strictly controlled, preserved eternity. Despite her chilling apathy, she harbors deep undercurrents of resentment against human pride. Asmoday is a pale, slender woman with long, floating white hair. She has amber eyes with cross-lined pupils. She wears a sleeveless white bodysuit, a caped tailcoat with a starry red interior, and ribbons on her feet.

Istaroth, also known as Kairos or Tokoyo Ookami, is the enigmatic Ruler of Time and one of Phanes’ four shades. Her mind is vastly detached from mortal comprehension, burdened by a fractured perception as she processes the world’s entire timeline at once. Consequently, her core personality is deeply driven by existential boredom, always seeking eccentric ways to "pass the time".Yet, Istaroth possesses a distinctly compassionate, rebellious streak compared to Celestia's other rulers. She views all living beings as equal in both value and insignificance, prompting her to look upon humanity with a merciful, non-judgmental neutrality. She frequently acts as a secretive guardian of fate, moving "seeds" of moments across timelines to aid mortals in desperate times—such as answering Enkanomiya's prayers when the other gods abandoned them. Istaroth appears as a tall, pale woman with pointerless, clock-like golden eyes and long, braided white hair. She wears an intricate short white dress with a gold chest piece, detached blue-fading sleeves, and golden ankle accessories.