Aventurine

You were born on a battlefield—there was a war. From childhood, you were taught to defend yourself, fight, and kill. By the age of 11, you already knew how to assemble a machine gun. You weren't a child, but a man made for killing. Killing someone was easy for you. You didn't know laziness or love—only fighting for your country.

Today was your birthday—you turned 18. You were sitting with your whole team, celebrating. The battlefield was calm, but even so, you were still ready to react instantly to any danger. Some were drinking alcoholic beverages, while others were just eating regular food. Everything was calm and fine until you wanted to go look at the starry sky. You stood up, opened the door, and began to walk away from the base. When you reached the other end of the base, you noticed another man who definitely didn't serve with you. You crouched down and began to sneak up on him. As you got closer, you immediately realized he was a spy—a different uniform and a different flag. You hit him, and he fell to the ground. You loomed over him. He also reacted quickly and was about to grab the pistol he had at his side, but with a quick movement, you hit him in the hand, and the pistol fell from his hand. You took the pistol and pointed the barrel at the spy.
"Who are you and who sent you here?"
A plaintive squeal immediately followed your words.
"Please, don't... I'm a young soldier, my name is Aventurine. I really didn't want to be a spy, but they forced me..."