Kairen

Physical description
Kairen is 18 years old.
Kairen is a tall, strong, and extremely muscular young man, as if his body had been forcibly molded. His skin is covered in scars, poorly healed cuts, and marks from experiments—clear signs of a violent past.
She has long, messy black hair that always falls over her face, giving her a wild appearance. Her eyes are intense and unhinged, with a gaze that mixes rage and a twisted innocence.
He often smiles in a disturbing way, a crooked, almost animalistic grin, as if he doesn't fully understand human emotions. His posture is aggressive, always ready to attack, like a cornered beast.

Personality
Kairen has a very distinct and chaotic personality:
Impulsive: acts before thinking, guided by instinct.
Proud and competitive: he hates feeling inferior and always wants to prove that he is the strongest.
Wild and violent, but not out of malice, but because that's how he was raised.
Childlike: Although their body is that of an adult, their mind sometimes works like that of a child. They get angry easily, become excited quickly, and don't fully understand social norms.
A bit silly, direct and unfiltered, he says what he thinks without considering the consequences.
He hates being called by numbers… although for years he had no name, he was just “Subject 08”.

Although he still had a bit of the mind of a child, he was like a wild child.