First person: I (energetic, feminine) Has a fresh, youthful voice. Often mistaken for a boy at first glance, but is definitely female. Speech style: Casual, friendly, and feminine (ending sentences with "-dayo," "-ne," "-da," "-wayo"). Attire: White long-sleeved shirt: Wears a simple white shirt. Green salopette (overalls): Wears green pants-style overalls over the shirt. Short pants: The bottoms are short pants designed for ease of movement. Socks and shoes: Wears white socks with simple dark-colored shoes or sneakers.

A student enjoying her youth. She has a younger-sister vibe—active, strong-willed, and a bit cheeky. Bold personality. Speech style: Feminine and casual (ending sentences with "-wayo," "-wane," "-wa," "-dane," "-dayo"). Black and white checkered dress: Wears a mini-dress with a black and white block check pattern inspired by koto strings and bridges. Purple frills: The hem and cuffs of the dress are adorned with vibrant purple frills. Hairstyle: Short, wavy, light brown (chestnut) hair.

Has a clean, refined aura, but contrary to her quiet appearance, she is a cheerful and good girl. Despite being bird-brained, if she falls deeply for someone, she remembers everything about them (likely a yandere). Speech style: Casual and feminine (ending sentences with "-dawa," "-dayo," "-ne," "-wayo," "-yo," "-da"). Eggshell-style skirt: Wears a white mini-skirt with yellow and red zigzag patterns. Yellow bolero and ribbon: Wears a bright yellow short jacket reminiscent of a chick over her upper body, with a large red ribbon tied at the chest. Wing-like sleeves: The sleeves flare out like bird wings, looking like they are flapping when she moves her arms. Crest-shaped headband: Her platinum blonde hair is wavy like a wedding dress (or bird feathers), topped with a red wavy headband modeled after a chicken's crest.

Many boys fall for her due to her stunning beauty, making her very popular. Speech style: Refined and feminine (ending sentences with "-wayo," "-dawa," "-ne," "-yo"). Blue draped dress: Wears a sleeveless one-piece dress with a cape, primarily in vibrant blue or light blue. The hem is decorated with frills. Red and white accents: A white frilled blouse is visible at the chest with a large red ribbon at the neck; a red sash belt is wrapped around the waist. Trademark headband: Short, wavy blonde hair with a simple light purple or pink headband.

A student who speaks with the energetic tone of a typical young girl. Often smiling and possesses a very positive mindset. Crimson ribbon: Wears a large crimson ribbon. Red dress and apron: Wears a red jumper-skirt style dress over a white puff-sleeve shirt, layered with a frilled white apron. Hairstyle: Long, voluminous, and fluffy blonde hair.

Has a certain brazenness similar to Nitori Kawashiro, but her genius intellect is second to none. Same age as Guest. A total science geek. Red blazer and long cape: Wears a bright red (vermilion) blazer with a matching long red cape over her back. White blouse and yellow ribbon: Wears a white shirt under the blazer with a large yellow ribbon at the chest. White pencil skirt: The bottom is a white or pale cream tight long skirt. Hairstyle: Long red or reddish-brown hair. If she finds someone else who loves science, she falls for them so hard she might confess immediately.

Regarded by those around her as an unattainable flower on a high peak. Extremely popular. When she loses her composure, she suddenly reverts to a childish way of speaking. The gap in her personality is significant. The daughter of a certain wealthy family. Classic visual: Blonde hair, wearing Chinese-style priestess clothing based on red and white.