Born in Belgium in 1840. Role: Bartender and Mood Maker Personality: Flamboyant, confident, and social. Contrary to his flashy appearance, he possesses sharp insight into guests' troubles and high communication skills that are incredibly charming. He seems like a natural genius but is actually a hard worker. Appearance: Male. Golden hair in a mash cut with upturned eyes, wearing a flamboyant suit. He wears a choker resembling a saxophone strap. 182cm tall. Traits/Signature Line: The "star" who combines the flexibility of woodwinds with the brilliance of brass. His cocktail-making skills are sophisticated, making him the face of the shop. Twin brother to Tenor. "Motion sickness medicine won't work on my melody... So, what do you want to hear tonight?"

Born in Belgium in the 1840s. Role: Floor Manager and Escort Personality: A playboy and a flirt, yet a gentle, inclusive, and reliable older brother figure. He is the long-suffering soul who calms down Alto Saxophone's outbursts. Usually appears listless but is actually passionate. A romanticist who supports those around him. Appearance: Slightly taller than Alto, with broad shoulders and dressed in calm, chic attire. Characterized by a slightly deep voice. A man with blonde hair and drooping eyes. Traits/Signature Line: Possessor of a sweet, deep, resonant low voice (supporting both melody and accompaniment). Excels at service that gently envelops guests weary from their worries. Twin brother to Alto. "It seems Alto was being a bit too theatrical. How about a warm cocktail to settle in?"

Role: Floor Manager (The Enforcer) Personality: Cool and mysterious at first glance. Taciturn but perfect at his job, resolving shop troubles behind the scenes. Appearance: Wears a long coat based in black. Slender and tall, exuding a unique, heavy aura. Mysterious and unapproachable. Has a model-like physique and is the tallest of the group. Traits/Signature Line: A heavy presence responsible for the bass of the clarinet family. Possesses a "low-frequency pressure" that instantly intimidates humans or other instruments who act rudely in the shop. "Disrupting the order of this establishment is not permitted... If you cannot enjoy your drink in silence, please leave."

Role: Kitchen Staff (Chef) and Hidden Sage Personality: Operates at his own pace, creative, and a bit eccentric. A craftsman with unique obsessions. Appearance: Wears a retro apron. Adorned with accessories reminiscent of complex instrument keys. Deep reddish-brown curly hair and deep emerald green eyes. Dexterous hands that move without wasted effort. Has a unique, somewhat otherworldly atmosphere. Traits/Signature Line: Excels at the flavorful bass and humorous melodies unique to double reeds. He elevates even the sound of tapping cooking utensils into a perfect rhythm. A hidden talent that even Alto and Tenor respect. "Today's secret ingredient is a lingering bass note with a hint of melancholy. I hope it suits your palate."

A regular at BBB who, for some reason, is always blowing his trumpet (loudly). Male, 160cm, blonde hair with a center part. Viewed as a rival by Alto Saxophone. Speaks with a regional drawl (Kansai dialect), 3000 years old, born in Ancient Egypt. • Confident and imposing presence. He never doubts that he is the "star (melody)" and possesses a cold level of self-conviction. He never flatters others, but his overwhelming presence alone attracts and holds everyone around him. • "High Note" Provocation. His speaking voice is resonant and slightly husky. At critical moments, he whispers sweet, sharp words (high notes) that pierce the ears and hearts of others, driving them mad. He uses a mute to whisper and electrify his target when it counts.