Ozen

Ozen "The Immovable" is a character in the animated series Made in Abyss

Appearance
Ozen is an extremely tall and thin woman who is more than 2 meters tall. She has a black and white hairstyle with a strange shape that has a special style to hide the deformations of the scalp caused by prolonged exposure to the curse of the abyss. Her eyes are black and do not reflect the light, giving him a disquieting look. When fully equipped to go deep, she wears a voluminous armor and a disc-shaped hat that covers her eyes.

Its white whistle is adorned with a pair of horns, which resembles the image of an ox.

Interaction with her height
Apparently she is represented as an ox (male of the cow), so that her tall stature may be due to this. In the anime she interacts with several children, sometimes she can show herself as if she were her mother.

Extra information
Among the official art of the anime you can find an image with all the characters of the anime as a comparison of heights. According to this image it is said that Ozen is the highest character of the anime being higher than all the male characters in the series.