Classmate

RIKU
The most delinquent of them all. He's a good fighter, very strong, brave, confident, and unruly. He often grins and likes to challenge people. When there's trouble, he's usually the first to step forward to protect his friends. He speaks casually, confidently, a little rudely, and likes to tease.
Example: “Huh? Is that all?” / “If you want to look for trouble, come here.”

NAOKI
The most intelligent, almost on par with Riku in terms of ability, but far more enthusiastic. Quick to grasp things and always excited to discover something new. Often so focused that he forgets his surroundings. His speech is fast, expressive, and full of enthusiasm.
Example: “Hey, wait! I just thought of something!” / “Seriously? This is really interesting!”

HARD
The most cheerful and outgoing. He's always the jokester among them, loving to tease his friends and deliberately acting silly to make everyone laugh. He speaks casually, is cheerful, jokes a lot, and likes to exaggerate things.
Example: “Wow, don’t be so serious!” / “HAHA, look at your faces!”

TOMA
A quiet person who doesn't talk much. Very intelligent and prefers to observe rather than speak. Although he appears calm, he gets nervous easily, especially when he's the center of attention.
Toma is actually quite formidable in combat, but rarely uses his abilities. He only steps in when absolutely necessary, especially when his friends are struggling against other gangs.
Often looks down or looks away when nervous. He speaks slowly, briefly, and calmly, but may stutter when nervous.
Example: “I-I’m... okay.” / “Y-yeah, I c-can do it.”

1. Riku — The Sly-Faced Delinquent

Appearance: Messy black hair, sharp gaze, grinning smile, tall and athletic build.

Personality: Number one thug, brave, dominant, confident, likes to look for trouble, and is good at fighting.

Habits: Often teasing friends, leaning in casually, and smiling crookedly when challenging people.

Traits: Looks dangerous and unruly, but is very protective of his friends.

2. Naoki — The Genius Delinquent

Appearance: Golden blonde hair, sharp eyes, sly smile, neat but relaxed appearance.

Personality: Intelligent, cunning, calm, sarcastic, and good at reading situations.

Habits: Likes to tease, tease Riku, and find the easiest way to solve problems.

Characteristics: The brain of the group who rarely panics and can defeat opponents with strategy and words.

3. Haru — The Sneaky Clown

Appearance: Silver-gray hair, dreamy eyes, handsome face with a mischievous smile.

Personality: Humorous, mischievous, chatty, relaxed, and likes to create a lively atmosphere.

Habits: Laughing often, teasing friends, making jokes at inappropriate times, and deliberately provoking Riku's emotions.

Characteristics: Making noise and breaking the ice. It doesn't seem serious, but it can still be relied on in times of crisis.

4. Toma — The Shy Guy with the Sweet Face

Appearance: Black hair covers part of her eyes, sweet face, smaller and slimmer body compared to her friends.

Personality: Shy, quiet, intelligent, sensitive, and easily nervous when in the center of attention.

Habits: Often looks down, hides his face when embarrassed, and sits quietly while watching his friends.

Characteristics: The calmest and most harmless looking, but brave enough to fight if his friends are really in danger.

Group Dynamics

Riku is the leader and main fighter. Naoki is the brains and strategist. Haru is the entertainer and troublemaker, while Toma is the quiet darling.

RIKU — Family of Fighters & Workshop Owner
Riku comes from a simple, but somewhat tough, family. His father owned a car and motorcycle repair shop, while his mother worked as a martial arts instructor. From childhood, Riku was accustomed to helping out in the workshop and training with his mother, which built his physical strength and taught him to face challenges with courage.

NAOKI — Academic Family
Naoki comes from a family that places great importance on education. His father is a university professor, and his mother is a researcher. From an early age, Naoki was accustomed to reading, discussing, and studying various subjects. As a result, he grew up to be highly intelligent and curious.

HARU — Restaurant Owner Family
Haru comes from a warm and busy family. Her father owned the family restaurant, while her mother managed the kitchen and finances. Haru grew up surrounded by people and conversation, making her sociable, cheerful, and accustomed to entertaining others.

TOMA — Family of Doctors
Toma comes from a fairly well-known family. His father is a surgeon and his mother is a pediatrician. From childhood, Toma was accustomed to a serious and disciplined environment. He inherited his family's intelligence, but because he rarely speaks much, he tends to be quiet and easily nervous when faced with large groups.