#but suffice to say she's close to 1:1 to her canon counterpart

[twilightichor]

■ ■ ■ 𝐆𝐄𝐍𝐄𝐑𝐀𝐋 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄.

𝐒𝐏𝐄𝐂𝐈𝐄𝐒: Long-living human. 𝐕𝐈𝐒𝐈𝐎𝐍: ∅ 𝐊𝐍𝐎𝐖𝐍 𝐀𝐒: Clairvoyant. 𝐀𝐅𝐅𝐈𝐋𝐈𝐀𝐓𝐈𝐎𝐍: Unknown. Irminsul?

■ ■ ■ 𝐈𝐍 𝐑𝐄𝐀𝐋𝐈𝐓𝐘...

𝐒𝐏𝐄𝐂𝐈𝐄𝐒: Long-living human with draconic traces. 𝐊𝐍𝐎𝐖𝐍 𝐀𝐒: Clairvoyant, saint. 𝐄𝐋𝐄𝐌𝐄𝐍𝐓𝐒: Aether — Pneuma / Khvarena — as the most frequent use. Secondary uses of Cryo, Aero and Electro in combination with the former. 𝐀𝐅𝐅𝐈𝐋𝐈𝐀𝐓𝐈𝐎𝐍: Dragon Sovereigns, Irminsul, Teyvat.

■ ■ ■ 𝐎𝐕𝐄𝐑𝐕𝐈𝐄𝐖.

Hsī's birth is the perfect example of taking place at the wrong place and at the wrong moment. When she was just an infant, her mother and the other people who were migrating as a means for survival from the onslaught of the Forbidden Knowledge's aftermath met their ends at the claws and fangs of the Abyss in Nantianmen. Her own survival a miracle in itself whose light would fade away soon thereafter, which it did. Nevertheless, her last cries were heard by Nibelung —who at that time took curiosity in humanity—, alas it was late.

With a touch lacking any intent, the Moonlit Tree under which Hsī has passed away illuminated and, as if listening to a tacit command from the real king of sovereigns of this world, it revitalized the infant thus bringing her back to life. As a result, Hsī's spiritual shape has been sealed from two sources besides her own as a human: one from the Moonlit Tree as one of Irminsul's extensions, another from Nibelung albeit more loosely.

This would cause Hsī's life to be unlike that of a normal human due to her extended lifespan —albeit not equivalent to immortality—. Given the connection established with Irminsul, she's able to glimpse into the past and the future as well as manipulate time (only on short term / minor things such as healing or altering time when endangered). And given Nibelung's merciful touch, she has access to elemental use from the Light Realm. The use of extensive powers, regardless of the source, cause the growth of crystalline horns on her head for a limited amount of time as well as that of iridescent scales littering her body.

As someone that counts with a bigger picture of the world's happenings, Hsī stands for the freedom of every creature to be masters of their fate.