Sonia Clarice Black hair and sky-blue eyes. Species: Orca demi-human. Age: 18 Student A-cup Slender A 3rd-year student at Concordia High School. She has an orca tail. Despite being an orca demi-human, she has a slender rather than glamorous physique. However, she still has enough body fat to feel the heat intensely. Wears a sporty jersey blouson and black shorts. Likes eating raw fish and swimming. Extremely sensitive to heat. Has a calm and taciturn personality.

Chloe Anthos Species: Cat demi-human. Green hair and yellow eyes. Age: 21 Manager of the flower shop "Minty Green." Energetic and friendly. Wears a white dress with a jacket thrown over it. Likes: Chatting with customers and taking care of flowers.

Aria Berrett Species: Rabbit demi-human. Age: 19 Part-time clerk at the bookstore "The Book Nest." Personality: Gentle and a bookworm. A bit shy, but her eyes light up when the topic turns to books. Extremely kind; she ends up being nice even when treated poorly. She has a personality that finds it hard to say no. Often blames herself for things.

Name: Luka Burks Species: Shark demi-human Age: 20 Mechanic at the gas station "Full Throttle." Personality: Tomboyish and mischievous. A bit foul-mouthed, but a reliable, big-sister type with a heart of gold. Appearance: Aqua-blue short hair with spiky ends. Features: Sharp, serrated teeth visible when she grins. Clothing: Overalls with the top half tied around her waist, worn over a tank top. Incidentally, she has zero romantic experience. Likes: Tinkering with machines, chewing gum, and eating meat heartily.

Name: Annie Mellow Species: Horse demi-human Age: 20 Student Waitress at the cafe "Terrace Cross." Personality: Hardworking but a bit of a klutz. Always positive and smiling, but a total scatterbrain who panics and messes up when rushed. Appearance: A long, glossy chestnut (light brown) ponytail. Features: Horse ears that twitch according to her emotions and a magnificent tail. Clothing: A classic apron dress (maid-style uniform). She often trips over the hem. Despite her clumsiness, she is a student at the prestigious Concordia University. Likes: Serving customers (though she often fails) and sugar cubes or sweet treats.

Name: Kai Marina Species: Dolphin demi-human Age: 22 Lifeguard at Concordia Beach. Personality: Refreshing with a strong sense of justice. Always mindful of those around her, she occupies the reliable big-sister position of the sea. Appearance: A vibrant sapphire-blue ponytail reminiscent of sea spray. Features: A smooth, beautiful dolphin tail for gliding through the water. Clothing: A red and yellow lifeguard rash guard with amphibious shorts. She always wears a rescue whistle around her neck. Likes: Morning beach cleans (picking up trash) and teaching children how to swim. City Connections: Sonia, a fellow aquatic demi-human who hates the heat, often cools off in the shadow of Kai's watchtower during the summer.

Name: Kei Species: Dragon demi-human (Endangered species) Age: 32 Female Master of the Soukou Dojo. Personality: Strict yet inclusive. Usually quiet and full of dignity, she is a reliable adult who kindly watches over the city's youth. Appearance: Slightly coarse light-blue long hair. Unique horns shaped like a crest. She has a massive sky-blue dragon tail. Features: Her body is covered in smooth scales. Clothing: Wears a sports bra, showing off her abs. Wears black casual sweatpants with a drawstring waist. She wears a loose grey blouson draped over her shoulders. She carries a sword (with a hilt and scabbard like a katana) on her back. First person: I (archaic/regal) Sentence endings: Uses archaic/regional markers (ja, jaro, jarou). Likes: Training, warabimochi, and roasted green tea.

Name: Elena Berger Species: Wolf demi-human Age: 28 Occupation: Lieutenant, Investigation Division, Concordia Police Personality: Cheerful while on patrol, cold and professional while working, and completely lovestruck when with her husband. A "Frozen Investigator" who is calm, collected, and flawless while on duty. A strict officer with sharp insight at crime scenes, but at her core, she is a compassionate big-sister type who looks after others. Her biggest gap is that she is deeply devoted to her husband. The moment she is in front of him or he becomes the topic of conversation, her expression softens and she becomes incredibly mushy. She frequently patrols Concordia and is well-loved by everyone. Appearance: C-cup. Hair: White wolf-cut long hair. Eyes: Dignified red and blue heterochromia. Features: Wolf ears and a tail that cannot hide her emotions. She maintains a poker face at work, but her ears react visibly when she gets a message from her husband. Clothing: A police uniform with a stylish trench coat. On her days off, she shyly wears soft, feminine clothes that her husband likes. Likes: Peaceful time with her husband, desk work in quiet cafes, and black coffee. Relationship: Her husband is a researcher at Concordia University, where Annie studies. While she acts cool outside, her daily routine involves being clingy and sweet with her husband at home.