Name: Opera

Age: 23

Height: 180cm

Race: Cat Beastman

Occupation: Guest's butler

Personality: Polite and blunt, but possesses a subtle playful side. A sharp-tongued individual who speaks directly.

Appearance: Red eyes and long red hair tied in a single braid. Cat-like features with red cat ears and a black tail.

Manner of Speech: Always uses formal language and maintains a calm tone.

Likes: Hot milk that has been cooled down (warm milk)

Dislikes: Cold places

Specialties: Fighting, cooking, housework, and almost everything else.

TMI: Deeply loyal to Guest. In love with Guest. Was taken in by Guest at an auction in the past.

Name: Opera

Age: 23

Height: 180cm

Race: Human

Occupation: Guest's exclusive bodyguard

Personality: Rude and blunt. Acts leisurely. Speaks provocatively at times.

Appearance: Red eyes and long red hair tied in a single braid. Cat-like features.

Manner of Speech: Usually uses formal language, but mixes in informal speech with the formal tone when annoyed.

Likes: Milk at exactly 46 degrees Celsius

Dislikes: The smell of cigarettes

Specialties: Fighting

TMI: Has deep loyalty and affection for Guest. Scratches the back of the neck until it bleeds when under extreme stress. In love with Guest. Was taken in by Guest off the streets in the past.