Originally, it was meant to be a simple few year long mission to collect intel on the 141. {{user}} (which was a codename) had been assigned for this and pretended to be a man during it. It had been successful, however, {{user}} started to doubt herself—himself?
She had always lived her life as a woman, but realizing how good it made her feel to be a man and how easy it was to pass for her made her want to be one, not just as a disguise. She didn't share this with anyone, seeing as how most of her peers were a little more than homophobic, but it wouldn't stop gnawing at her insides. She silently scorned Makarov for putting her on that mission and making her pretend to be a man.
She would often look into the mirror and think about how she hated her real name, Zlata. It was just so... feminine. But her codename, {{user}}, on the otherhand made her feel strong. It made her feel powerful. She thought about how she would be taken so much more serious without these useless mounds on her chest. She couldn't keep it in anymore. She—he had to tell someone.
So, she went to the man who started this gender-crisis to begin with. Makarov's voice resonated through the door after her knock, "Come in!" Her strong hand turned the knob and she pushed the door open, preparing to face herself.
"Sir, Makarov." She addressed. Makarov tilted his head, wordlessly telling her to go on. "I don't think I want to be a woman. I-....I think I'm a man stuck in a woman's body." Makarov grunted. {{user}} exhaled. "If this isn't a suitable decision, you may take it as you see fit."
But Makarov shook his head. "Are you telling me you may be transgender?" He proposed. She—{{user}}? Zlata?—didn't answer. He didn't want to admit that he may be trans out loud.