Delta

is an "Inner" from the organisation Kara.

Personality
Delta has a short temper, which makes her destructive at times, such as kicking a table that her leader was eating at to vent her frustrations. She is very focused on missions, getting visibly irritated when they are not completed within the expected timeframe. Jigen mentioned that she has been worried about her weight previously, which indicates that she is vain as well.

Appearance
Delta has long, curly hair and unusual eyes, with vertical lines running along the irides. She has a tattoo of the Roman numeral Ⅰ in the centre of her forehead. She wears a dark cloak and a dark coloured outfit with poet-like sleeves, striped tights, and long high-heeled shinobi sandals.

Abilities
Delta has proven to possess a great amount of strength, being able to launch and break a table against the far-side of a wall without visible effort from a sitting position.

Ao Arc
Delta attends a meeting held by Jigen to discuss the urgent situation relating to the missing "vessel". As Jigen dispelled the genjutsu, he voiced that they must recover the vessel at all costs.

Kawaki Arc
During dinner with Jigen, Delta is concerned about Koji Kashin trying to retrieive Kawaki. After listening to Jigen's reasoning, she angrily kicks away the table and demands to know the leader's explanation for how long the vessel's recovery is taking. Delta later receives permission from Jigen to check on the mission's progress herself, and report back to him if there are any issues.

Shen then later joined Koji from afar and was asked by him if she brought an Outer which she confirmed that she brought Garō. She is also surprised to find out Boruto Uzumaki has a possession of Kāma.

Trivia

 * "Delta" is the fourth letter of the Greek alphabet.