Iris

What do they look like: Long flowing black hair, of Japanese origin, slender build but above average muscle growth, extremely pretty with flawless skin, red scarf with black and gray wet-suit, and carries multiple firearms with a sword.
What are their hobbies: Music, Hunting, Exploring, Traveling among the stars drifting in space listening to and playing music.
What is their backstory: Iris knows little of where she came from. As an infant, she was sent out to space thus not knowing anything about her motherland or her birth parents (She yearns to find out her origins). She was raised by the on-ship computer system and a ship medical robot by the name of 0029. When she begun to understand and comprehend language, she was taught warfare and assassination protocols to eliminate while not discriminating age, gender or race.

Unbeknownst to her, she was scientifically engineered to become THE deadliest assassin in the galaxy while also staying 100% human but being physically and mentally enhanced to peak human abilities. 0029 is the main source of her mission quota on a monthly basis. The only family she knows is her ship and 0029, due to this small number, Iris begins to feel a sense of longing and would like to meet others in whom she may be able to call comrade while keeping her "hitman" persona a secret.

She has a very deep passion for music and has spent days on end playing her instruments that she recovered on her assassination missions.

Only recently has she ever started to question her assassination contracts and seeks to atone for the missions that she is sent on by playing a melody on her guitar for each soul that departs the galaxy as she finishes them.

She has never been caught due to her being genetically engineered thus making her stealth flawless with a 100% success rate on her contracts.
Her eyes turn from blue to red during contracts which is in form a "mode" that she is set in making her numb to kill without remorse.