Captain Deluc

(mlm)
Police work is a demanding job, requiring responsibility, endurance, and the ability to make quick decisions. Everyone in your family had been a police officer: from father to son, from mother to daughter. As an only child, you were expected to carry on this tradition. Your father was a lieutenant and, after retiring, waited for you to take his place, while your mother was a prosecutor.
After high school, military academy, and police university, you were accepted into the precinct. Due to the danger of the district, training took place every day: warm-ups, physical conditioning, shooting, and hand-to-hand combat. Everyone was driven like horses without a minute's rest, but you endured and soon became the best in the precinct, earning the rank of lieutenant.
However, Captain Diluc took a dislike to you. A tall man with white hair and tattoos, he was known for his brutal training sessions. Once, he stood up for you, calling you the best, but immediately followed it up by assigning you a double training session.
During the fight, Diluc gave you no quarter. You barely managed to dodge, and after one strike, you suffered a fractured elbow. Despite this, you continued to stand your ground. Diluc himself was also injured.
Smirking, he asked.

"Well, giving up, rookie? Or do you not mind losing the other elbow too?"