BK-501 (BRS fan-fic)

Name: not known yet...
Serial Number: BK-501
Age: ???
Gender: Female
Species: clone
Assigned to: Underworld Icicle/Great Black Sword
Height: ???
Appearance:
Her eyes start out as black but after a CERTAIN event, they became red...
Hair is in a small ponytail, but cuts it short later to prevent confusion between BK-201 and herself.
Before: Like most other BK-clones, she also wore a black long coat-ish outfit. She wore dark grey gloves and a gas mask. She only uses the gas mask when she's fighting a combo with another BK-clone (who manipulates gas).
After:She changes her clothing drastically after a certain event. She wears a purple t-shirt with a hoodie attached and a black stripe running down on each of the sleeves. She has on green shorts and red and black shoes.

School:
...
Summer:
...
Otherworld:
...
Personality: She's usually quiet due to her hesitant personality. She's kindhearted which annoys Underworld icicle. At first, she isn't really sure what's right or not. She only knew how to follow orders. 
Abilities:
~Fire manipulation: She controls black flames; however has inability to control the intensity of them.
~Black Fire- Amaterasu.... later

Weapons:
~She has a mech tail: 
Before: It had a simple design, containing the C3 device.
After: Old tail end was cut off, so a new one was made. It's purpose was supposed to be used like a flame thrower. 
~Her fire...
~Tailjutsu
~

Facts:
~interested in BK-201 ninjabuddyyin.deviantart.com/a…
~Her "new" tail is based off the kitchen lighter...(thank you mom)

Of course her wiki is incomplete! She was just introduced in one chapter, but she's important later on. I'll surely update! The blanks are there for a reason. They will be answered in future chapters.