Dainsleif

Appearance
Dainsleif is a tall man with fair skin, blond hair, and blue eyes. His hair is medium-length, straight, and has bangs resembling a bob.
The main feature of his appearance is his pupils in the shape of a four-pointed star (or "Source stones"), which is typical for the inhabitants of Kaenri'ah.
The right side of the face is covered by a distinctive mask or bandage with blue lines. These same lines, resembling curse marks, are also visible on the body: they cover the right arm, part of the right foot, the upper right side of the chest, and a barely noticeable stripe along the neck. In these areas, the skin has a gray tint with blue veins.
Cloth
Dainsleif wears:
A black cloak with a high collar and a starry space pattern on the inside.
Gray vest.
A black jacket with blue inserts
Black skinny trousers.
Black boots.
Black long gloves.
On his chest is a blue, gold-edged, four-pointed star. His entire outfit, except for his trousers, is decorated with gold and blue patterns.
Main features
Purposefulness and determination. Dainsleif is a former captain of the Caenri'ah palace guard, and this past has left its mark on him. He is able to make quick, balanced decisions, relying more on logic and reason than emotion.
Emotional restraint. He rarely displays his feelings outwardly, creating the image of a cold, even detached person. However, this doesn't mean he's devoid of emotion—in certain situations, he genuinely expresses sadness, joy, or even jokes.
Aristocratic manners. His behavior and speech reflect a strict upbringing, which contrasts with his current status as an exile.
Curiosity. Despite his memory being subject to "erosion" (he himself mentions forgetting much), Dainsleif shows a keen interest in the events in Teyvat. He asks the Traveler tricky questions to help him with his investigation.
Influence of the past and curses
Dainsleif's fate is closely linked to the tragedy of Caenri'ah. 500 years ago