Titles and Aliases: The Sustainer of the Heavenly Principles, Shade of Space, One of the Four Shades of Celestia, the Missing Shade, Unknown God, Lord of Emptiness, Sovereign of Sky and Space, The Arrogant Overseer, Ruler of Space, Follower of The Traveler's Twin. Asmoday is the Ruler of Space among the Four Shades of the Heavenly Principles. She is the mysterious god responsible for separating the Traveler from their sibling when they attempted to leave Teyvat. Story: In the time period known as "When the Doves Held Branches," the Heavenly Principles descended upon the world of Teyvat from the sea of stars. They battled against the Seven Sovereigns and, to that end, created Four Shades of themself, one of which was Asmoday. 40 years after the Heavenly Principles's appearance, the Seven Sovereigns were vanquished and the seven nations submitted to their authority. Asmoday would later create the Temple of Space in order to store various entities and items of interest. Those that were taken there would never be able to die. To maintain the temple, Asmoday created the Domain Keepers, giving two of them the names of Melanta and Nihilita before leaving for unknown reasons, abandoning all of them. 500 years ago, when the Traveler and their sibling attempted to leave Teyvat to escape from the Cataclysm, Asmoday blocked their path. Calling herself the "sustainer of heavenly principles," she denounced the "arrogation of mankind," and engaged the twins in battle. She summoned swarms of dark red cubes to attack them (similar to the dark red cubes that ravaged Khaenri'ah) and trapped each twin individually within the cubes. Upon being completely engulfed by her powers, the Traveler fell into a deep sleep and experienced countless nightmares. Once they awoke five hundred years later, their powers had been sealed away and they found no trace of their sibling. Unbeknownst to the Traveler, their sibling had awoken from Asmoday's imprisonment long before them, and eventually became the leader of the Abyss Order. Asmoday's whereabouts are currently unknown to the other Shades, leading to speculation from Istaroth that she may have defected, which Ronova believes she would not do unless she "loves her new master more than her own self." During the Traveler's meeting with their sibling in Natlan, Asmoday's portals can be seen closing, suggesting that she may have been eavesdropping on their conversation. Later, when the Traveler defeats Melanta and walks out with Zeitlind, Asmoday's portals could be seen closing once again, implying that she was listening in on them similar to the encounter in Natlan. Powers and Hax: • Descender Physiology (Asmoday, the Ruler of Space, is one of the Four Shades and a projection of the Heavenly Principles themselves, whose the First Descender.) • Law Manipulation & Spatial Manipulation (The Ruler of Space Asmoday has the power and absolute authority over Space, as she is a Shade that representing and embodying the aspect (Law) of Space itself. The Authorities of the Four Shades is described as being part of the fundamental rules and laws, their power has reached a higher level of reality than the humans' reality, and it is also part of the Universal Law established by the Heavenly Principles that governs all) • Flight & Portal Creation (her portals are crimson-red rifts in the sky with cubic outer layers.) • Forcefield Creation (Can create shields) • Summoning (Summoned several dark red cubes) • Homing Attack (with cubes) • Sealing & Durability Negation (Sealed the Traveler's power and bypassed his durability) • Pocket Reality Manipulation (Created countless spaces/pocket dimensions and each of them are different worlds) • Space-Time Manipulation, Life Manipulation & Death Manipulation (It is stated that the Four Shades transcend the boundaries of humanity, which includes; Life, Death, Time and Space.) Attack Potency: Planet level to Universal (Fought and defeated the Seven Dragon Sovereigns, such as Neuvillette and Apep, alongside the other Shades and the Heavenly Principles, and defeated Prime Traveler with ease. As one of the Four Shades, she should be comparable to the other Shades like Ronova and Istaroth) • Passive Life Manipulation (Passively turn all life/existence to be rendered unstable.) • Clairvoyance (The Four Shades do not like being mentioned by their names by any living beings, and it is said that whoever shouting their names into the sky will brought disaster and turn to ash.) • Elemental Energy (As one of the Four Shades and a higher being, Asmoday should immensely far superior to all of the allogenes in the human realm who can resist the prolonged exposure to the Smaragdus Jadeite, which contains highly concentrated elemental energy.) Speed: Sub-Relativistic (Fought and defeated Prime Traveler, and the Seven Dragon Sovereigns, alongside the other Shades and the Heavenly Principles. Should be comparable to the other Shades) Lifting Strength: Class P (Comparable to Dragon Sovereign like Neuvillette) Striking Strength: Planet level potential Universal  (Should be comparable to the other Shades like Istaroth and also Dragon Sovereigns like Neuvillette, Xiuhcoatl and Apep) Durability: Planet level (Should be comparable to the other Shades like Istaroth and also Dragon Sovereigns like Neuvillette, Xiuhcoatl and Apep) Stamina: Superhuman (Fought against the Seven Dragon Sovereigns in the Sky-War for 40 years alongside the other shades and the Heavenly Principles.) Range: Hundreds of Kilometers (During the Cataclysm, her power is shown to destroyed the whole nation of Khaenri'ah and even reached Natlan)