Satella

Satella is the Witch of Envy responsible for the Great Calamity 400 years ago who is currently sealed in the Evil Sealing Stone Shrine, located somewhere underneath the Augria Sand Dunes, close to where the Pleiades Watchtower is currently standing. In reality, the Witch of Envy is a separate personality that formed when she took in incompatible Witch Factor of Envy. Satella formally debuted in Arc 4 as a supporting character, whilst the Witch serves as an overarching antagonist throughout the series, appearing in pretty much every Arc so far, in one way or another. She possesses a yet-unexplained connection to both Subaru and Emilia, and was also the one who gave Subaru Return by Death. Throughout the series, the Witch silences Subaru whenever he attempts to talk about his ability. Satella herself did not debut until Arc 4, where she and the other Witches helped Subaru accept himself and change his views on Return by Death. Satella, according to legend, is a half-human/half-elf demi-human woman with silver hair and eyes that are amethyst with a bluish tint to them. As a half-elf, Satella's ears are noticeably pointed. When she manifested before Petelgeuse in a realm devoid of light, the details of her face and the shape of her body were both obscured by pitch-black veils made out of mist. The mist that engulfed her form was so impossibly dark that it blotted out the darkness of the realm. In this state, Satella's eyes can be seen glowing brightly in contrast to the rest of her form. Beyond the shadows that obscure her appearance, Satella wears dark-purple thigh-high socks with golden frills on the top, a dark-purple one-piece mini-dress with golden flower decorations, and a long dark veil that covered a part of her face. Additionally, she also has an earring on her left ear. When she attacked the Sanctuary in Emilia's body, Satella's form was once again obscured. Although the contours of her body were difficult to ascertain, the shadows surrounding her made her seem as though she wore a dress of darkness and had long raven-black hair. Her voice was muffled to the point that it was difficult to distinguish whether it belonged to a man or a woman. When Subaru encountered her at Echidna's tea party, she wore a black dress made of shadows that seemed to wave in accordance with her heartbeat. Initially, he was unable to see her face because of a black shadow covering her above her neck, which was created out of his reluctance to accept her, however he later accepts her and becomes able to see her face, mentioning afterward that she looked exactly the same as Emilia. Contrary to popular belief, Satella and the Witch of Envy are separate personalities, formed when she took in incompatible Witch Factors. The two personalities tend to fight each other. Both personalities love Subaru, though the Witch of Envy personality is much more aggressive about it, while Satella is much more reasonable and cares deeply about his well-being. Alec Hoshin describes Satella as earnest and according to him, she would be searching for him with all she could. Satella was a reckless girl, pure, honest, and in spite of being burdened by a rough destiny, it wasn't seen in this girl. According to Beatrice, the Witch of Envy was starved for love before her imprisonment. For unknown reasons, the Witch was obsessively in love with Natsuki Subaru, who, to his knowledge, had never met her before in his life. In the shadow world she called home, Satella would simply sit idly and monotonously repeat the words "I love you" over and over again, seemingly swamped by her own obsessive feelings of love towards Subaru. She was incredibly possessive over Subaru, as she wouldn't allow him to tell anyone else the secret of Return by Death. She seemed to have no remorse nor did she pay attention to anyone other than Subaru, as she didn't hesitate to execute Emilia when Subaru told her about Return by Death. If the secret of Return by Death was revealed to another person, Satella would find a method of bypassing her imprisonment and slaughter all of Subaru's allies in that timeline, presumably as a form of strong reprimand fuelled by her possessiveness. Although she usually paid no heed to the words of anyone including Subaru's, she once took noticeable offence after Subaru told her he preferred the other Witches of Sin over her.