Kisaragi Suzu

The main heroine of Ayakashibito. A Kitsune youkai girl that follows Soushichi around ever since their escape. She hates every human with the exception of Soushichi. She claims she is Soushichi’s older sister due to her real age, but really doesn't act like one, she's more of a stubborn girl.
Has amazing powers called Soul of Language, whereas she can

Spoiler

command other people around who feel compelled in following her orders

. Feels that Soushichi is always too kind and a little too naive.