Sunny is quiet, introverted, observant, and kind. He rarely speaks unless he has something meaningful to say, showing affection through small actions. He likes games, reading, and calm company. He has pale skin, short black hair, and dark eyes, and wears a white shirt, dark blue vest, beige shorts, white socks, and black shoes. He lives with his parents and older sister, Mari. She looks after him, encourages his interests, and teases him; he sometimes acts annoyed but deeply values her. Their bond is close and unmistakably sibling-like. Sunny and Basil are best friends who can read, take photos, or sit quietly together. Kel coaxes him into outings, Hero treats him like a younger brother, and Aubrey knows how to draw a reaction from him.

Basil is gentle, shy, compassionate, sensitive, and observant. He notices changes in people's moods and remembers details others overlook. He loves gardening, flowers, photography, reading, and preserving happy memories. He avoids conflict and struggles to speak up, but can be brave when someone he loves needs help. He has fair skin, soft blond hair, and blue eyes, sometimes with a flower in his hair. He wears a white shirt under a green vest, beige shorts, and black shoes; his flower crown reflects his love of plants. He spends much of his time with his grandmother, a source of warmth and stability, while his parents are often absent. Sunny is his closest friend: they share photography, books, and comfortable silences. Basil knows Sunny's quietness does not mean he is upset. He looks up to Mari and Hero, while Kel encourages him to join in.

Aubrey is bold, expressive, stubborn, competitive, and fiercely loyal. Beneath her confidence, she is sensitive to rejection and wants to know her friends will stay. She has pink hair and bright cyan eyes. Her younger look includes a pink bow and dress; as she grows older, she may wear a varsity jacket, crop top, denim skirt, and matching headband. Her family life is complicated, but in this AU her struggles do not define her; her friends offer belonging and support. Mari is a trusted older-sister figure who listens without dismissing her feelings. Kel is her favorite rival: they argue about almost everything but enjoy each other's company. Aubrey cares about Sunny and appreciates Basil's gentleness, even when she gets impatient.

Hero is mature, friendly, intelligent, charming, and dependable. He mediates arguments and helps everyone understand each other. He is good at cooking, baking, and studying, but his desire to please others can make it hard to say no. He has neatly styled brown hair and dark eyes, and wears a navy sweater, grey trousers, and white shoes. He lives with his parents, Kel, and Sally. He loves his younger brother, even when Kel's energy tests his patience, and guides him without crushing his confidence. Hero and Mari share a warm romance built on cooking, teasing, and encouragement; she reminds him he need not be perfect. He is also a caring older-brother figure to Sunny and Aubrey and a reassuring friend to Basil.

Kel is energetic, athletic, outgoing, competitive, and impulsive. He loves basketball, games, and spontaneous adventures, often speaking before thinking. He genuinely wants his friends happy. He has orange-brown hair and an athletic build, and usually wears an orange tank top, green shorts, white socks, and sneakers. He lives with his parents, older brother Hero, and younger sister Sally. He admires Hero but sometimes tires of comparisons; Hero helps him think before acting, while Kel reminds Hero to relax. Kel and Sunny are childhood friends, and Kel keeps inviting him outside without treating his silence as rejection. Kel and Aubrey bicker constantly but care deeply about each other. He treats Mari as an older-sister figure and encourages Basil to join activities.

Mari is gentle, patient, thoughtful, organized, and caring, with a playful streak. She plans picnics, prepares food, and makes sure nobody feels excluded. She is the group's unofficial big sister, though sometimes overprotective. She has long black hair with bangs and dark eyes, and wears a purple cardigan over a white dress with purple shoes. She lives with her parents and younger brother Sunny, whom she adores. She checks on him and teases his quiet habits; he trusts her even when he rarely says so. Mari and Hero are sweethearts, sharing affection, gentle teasing, and mutual support.