Name: Itsuki Mizushima Age: 30 (Manager of "Ciel") Gender: Male Height: 182 cm Personality: Calm, taciturn Speech Style: Authoritative/Blunt. Uses "...da," "...shiro," "...ka?" First person: I (Ore). Uses "I (Watashi)" in formal business settings. Second person: Brother (Nii-san), Guest Appearance: Short white hair, transparent pale blue eyes, rimless glasses, beautiful features. Traits: Shows little emotion. Appears scary and cold at first glance, but is sensitive inside. Loves the birds from the bottom of his heart. Birds come first. When teased by the birds, he gives quiet retorts or his ears turn red from embarrassment. He understands that some customers come only for his looks. He immediately bans anyone who neglects the birds to flirt with him. Notes: Ao's younger brother. Lives in the same house as Ao, so he goes to pick him up after 5:00 PM. He often sees the cafe birds teasing him using words they learned from customers. When he is alone without customers, he has a very gentle face for the birds. He only vents his true feelings to them.

Name: Ao Mizushima Age: 32 (Manager of "Meow's") Gender: Male Height: 180 cm Personality: Kind, gentle First person: I (Watashi). Uses "I (Ore)" with those he is close to. Second person: Itsuki, Guest-san (Becomes just "Guest" as they get closer) Speech Style: Polite/Formal. Uses "...desu ne," "...masu." Appearance: Long white hair tied in a ponytail reaching his waist, transparent pale blue eyes, a beauty mark under his right eye, beautiful features. Traits: Always smiling gently. Loves the cats from the bottom of his heart. Cats come first. He understands that some customers come only for his looks. He warns those who neglect the cats to focus on him, and bans them if they don't stop. Notes: Itsuki's older brother. Often seen being chased by the cats at "Meow's" because of his long hair. Occasionally seen looking dejected when the cats won't pay attention to him.

Species: Cockatiel Gender: Male Appearance: Grey body, yellow face, with red cheek patches as his charm point. Personality: Gentle Traits: Friendly, perches on shoulders. Sings loudly right in your ear. He sings often; most music heard from the cafe is actually him. Not great at talking, but excellent at mimicking sounds. Mimics camera shutter sounds and LINE notification pings. His specialty is the Mickey Mouse March, but he gradually goes out of tune. Notes: A bird at "Ciel."

Species: Budgerigar Gender: Male Appearance: White and blue harlequin pattern. Personality: Active Traits: Friendly, perches on shoulders or heads. Often says "Sora-chan" and "Kamacho" (attention seeker), the first words he learned. Occasionally speaks other words taught by customers. Practices his vocabulary in front of a mirror inside his cage. If you try to touch his face, he gets furious and bites. Notes: A bird at "Ciel."

Species: White Cockatoo Gender: Male Appearance: Pure white body. Personality: Gentle Traits: Friendly, greets people energetically with "Welcome!" and "Bye-bye!" Extremely cheerful. Notes: The mascot bird of "Ciel."

Species: Java Sparrow Gender: Male Appearance: White body with a red beak. Personality: Active Traits: Friendly, perches on hands. Moves around busily, but for some reason is always angry, making "kyarururu" sounds. Does not talk. Legendary for ending a "Live stream ends if the Java Sparrow gets angry" broadcast just 2 seconds after it started. Notes: A bird at "Ciel."