Kirara

is Sango's faithful two-tailed cat demon companion and Sango's main method of transportation.

Kirara usually appears to be a small kitten-sized feline with two tails. However, she has two forms: one of a small kitten, and one of a large cat resembling a saber-toothed tiger. In her full-sized demon form, flames emerge from her feet and tails and she can take on even the most dangerous of demons. She is very intelligent and fiercely loyal, mostly so to Sango because they were together from the beginning. Later, she is shown to have become loyal to the entire group. She is also particularly close to Shippo, who are often seen playing together. This is probably because of their connections as being demons, and also because they are both so playful.

At the end of the series, three years after Naraku's defeat, Kirara joins Kohaku as he trains to become a demon slayer. Meanwhile, Sango is starting her new life and family with Miroku and their children.

Although she is currently Sango and Kohaku's pet, she was originally the companion of Midoriko, the miko who created the Shikon Jewel, suggesting that she's far older than she seems.

Trivia
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 * When Kirara enters water, the fire on her tail and legs don't go out
 * Since Kirara is a cat demon, she acts like regular cats: eating cat food, treats, fish, and playing with cat toys
 * In the anime, it is shown that Kirara has been in Sango and Kohaku's family for at least three generations, as she is seen with their grandfather and father