From: black butler

Name: Samule

Gender: male

Age: 13 years old, two minutes older than his sister

Species: cat demon

Personality: very gentleman like, protective of his sister, cautious of other demons, and soft spoken

Place of Demon sign: right ankle

Name: Sarah

Gender: female

Age: 13 years old, two minutes younger than her brother

Species: human aristocrat

Personality: sweet, smart, knows her way around a crime scene, and well read
Place of contract: left ankle

How they both look: