Tuareninya Veyron

Tsuareninya Beiron (ツアレニーニャ・ベイロン) is a maid apprentice of the Great Tomb of Nazarick under Sebas Tian's supervision and also under the protection of Ainz Ooal Gown. She is the older sister of Ninya.

Personality
She had very low self esteem and tend to dislike humans due to their treatment towards her.

Background
Tsuare is very close to her younger sister as she knows various things about her. Ninya mentioned that her older sister was taken by a noble but that she still doesn't know what happened to her. It became clear that she was sold into slavery.

The Men in the Kingdom Arc
Tsuare was saved by Sebas Tian when she was about to be disposed by the brothel. She is later taken by Sebas to their mansion for shelter and healed by Solution Epsilon. She became a maid in their mansion so that they can blend more perfectly for their mission.

She was later accepted into Nazarick due to Ainz wanting repay a debt to her younger sister, Ninya.

Sebas Tian
Actually is her lover (or that was thought by Demiurge in volume 7) and is pretty loyalty to him after he saved her and took her in Nazarick as refuge.

Ninya
Ainz said that is her sister.

Ainz

Is seen that is not loyalty to him, but she has some grateful feelings toward him

Ainz considere her as a form to pay a debt to the actually dead Ninya, because her diary let him some information about the New World

Trivia

 * She is the first human from the New World that Ainz accepted in the Great Tomb of Nazarick.
 * She had some feelings towards Sebas.