Ekaterina (エカテリナ, Ekaterina) is a hostess working in Sindria's pleasure house.
Ekaterina is a tall, muscular woman with a crooked nose. Her hair style comprises of twintails tied with pink bands. She wears a tanktop that reveals her bosom, a yellow collar around her neck, and red lipstick for her face.
Not much is revealed about her personality.
No back story is revealed for Ekaterina.
While Sharrkan flirts with two beautiful women, Ekaterina arrives to chat with Alibaba Saluja who freaks out at her resemblance to Elizabeth.  When Alibaba asked for the most popular girl, she was the one to attend.
- Her name, Ekaterina (Екатерина), is Russian that means "pure".
- She bears a resemblance to Margaret in the Aktia Kingdom and to Elizabeth in Qishan.