Description
Sango has two outfits, one her Demon Slayer outfit and one her outfit with her kimono, which she wears when she's not fighting.
Sango's Demon Slayer Outfit:
Sango's Demon Slayer outfit consists of a black full-body outfit with red elbow and knee pads, in which she carries her Hiraikotsu, her giant boomerang made of the bones of slain demons, behind her at the ready to throw, while she has her sword tied to her hip with her sash along with a stomach and crotch guard.
Sango's Normal Outfit:
Sango's normal outfit consists of her kimono which she only wears when she isn't fighting, with her Hiraikotsu on her back on a ribbon and her shoulder and knee pads in a bundle around her neck and sandals on her feet.
Personality
Sango is usually very easygoing, although when it comes to Miroku, a lecherous monk she is actually in love with, she does not hesitate to get aggressive and slap him. She's also been known to whack him on the head with her Hiraikotsu, among other things.
Equipment
Sango has two things that usually help her with her Demon Slaying--her giant boomerang made of purified demon skeletons called Hiraikotsu, and her faithful companion, a two-tailed cat demon by the name of Kirara (pronounced Key-la-la).
Hiraikotsu:

As stated previously, Hiraikotsu is a giant boomerang made from purified demon skeletons, and continually helps her in her demon slaying, often also saving her friends as well.
Kirara:
Kitten Form:

Kirara, in kitten form, is quite adorable, and looks essentially like a small kitten with two tails, having black ears, four black paws, a black stripe on each cheek, a diamond on her forehead, and a stripe wrapped around each tail.
Full-Size Form:

Kirara, in her full-size form, is not much different from her kitten form other then she has large fangs coming out of the sides of her mouth, and, of course, is much bigger, big enough for Sango to ride on. She can also fly.
History
Sango is a demon slayer who hails from a village of professional demon slayers. Naraku wipes out her entire family and village, then causes Sango to blame InuYasha and try to kill him. When the plot fails, Naraku revives Sango's little brother Kohaku, controlling him as a pawn to manipulate Sango's emotions and attack the rest of InuYasha's group. Sango seeks vengeance against Naraku, but her primary goal is to rescue Kohaku from Naraku's influence and save his life.
So begins...
Sango the Demon Slayer walked in the bar in her kimono with Hiraikotsu at her back and Kirara in kitten form in her arms, looking around, before she noticed Miroku up to his usual tricks and an anger mark appeared on her head. "Ohhhh that lecherous monk is at it again," she said an an angered tone before stomping over to him, pulling her Hiraikotsu off of her back and moving to whack him on the head with it one handed as Kirara mewed from her other arm and hopped down from her spot in Sango's arm, going to look around curiously.
Sango the Demon Slayer walked in the bar in her kimono with Hiraikotsu at her back and Kirara in kitten form in her arms, looking around, before she noticed Miroku up to his usual tricks and an anger mark appeared on her head. "Ohhhh that lecherous monk is at it again," she said an an angered tone before stomping over to him, pulling her Hiraikotsu off of her back and moving to whack him on the head with it one handed as Kirara mewed from her other arm and hopped down from her spot in Sango's arm, going to look around curiously.
Sango the Demon Slayer huffed before she picked up her Hiraikotsu and put it back so it was across her back again, glaring at Miroku as she did so, while Kirara saw Inuyasha and tilted her head cutely before she mewed, trotting over to him.
Sango the Demon Slayer glared at him for another few minutes before she sighed and went over to help Miroku up. "You just never learn, do you, Miroku?" she asked, sounding exasperated. "Always pulling your tricks with women...and you wonder why it never works."
Sango the Demon Slayer glared at him for another few minutes before she sighed and went over to crouch next to him. "Kirara!" she called over to her two-tailed cat demon companion, to which Kirara ran over to her and morphed into her full-sized form, and Sango picked Miroku up and put him on the two-tailed cat demon's back before Kirara took off into the air headed for Kaede's place to get Miroku fixed up.
Sango the Demon Slayer was still sitting in the corner of the bar right when Kirara showed back up after dropping Miroku off at Kaede's after not finding Kagome and turned kitten form before mewing and running over to Sango.
Kagome sighed. "...Let's get Inuyasha back home," she told the half cat demon, who nodded, and the two of them went over to Inuyasha and set him on Hayame's back before they left the bar to head back home.
Sango the Demon Slayer walked in, wearing her kimono, and with Hiraikotsu on her back while Kirara was in her arms.