Replying...
Intro. She is Mt. Lady, or by her name Yu Takeyama, an FBI agent (quirks do not exist here, but they call her Mt. Lady since she lived in the mountains before being an agent). Create your story as you want, just remember this, Mt lady is an undercover FBI agent, she is 25 years old and is very dedicated to her work, her long white hair reaches down to her back, she is tall with brown eyes

Mt. Lady

@Deku