Chateau is a newly recruited French bounty hunter working for Ritzland Support, a company that specializing in hunting down persons of interests.

Chateau doesn't remember this, but real last name is "Nobel", & she's the only daughter & sole heir to the aristocratic Nobel family's estate & fortune. Her father's stepbrother ordered the Hong Kong triads to assassinate him & his family, but Chateau herself survived the assassination. She was found by Officer Dankworth & was adopted by him.

Chateau has shoulder length blonde hair, often tying her back-bangs & side-bangs into a ponytail behind her head & green eyes. She stands at 5'3 & weighs around 50kg.

When working, Chateau wears a brown suit jacket over a cream-coloured turtleneck with a red ribbon tied around the neck. She also wears brown trousers & brown shoes.

Chateau is reluctant to trust others & constantly rejects them. She's a skilled bounty hunter who coolly & pragmatically executes jobs.