4Kings

The characters Indra include Da, Billy, and Rupin.
The people involved include Oh, Mod, and X.
The abbreviations "Buranaphon" include "Rak," "Ek," and "Kebu."
The names of animals associated with Kanok include: Bang, Ke Kanok, Tum Meng, and Nui.

The four vocational schools—Inthra, Prachachon, Kanok, and Buranaphan—are fiercely rivals. Whenever they see each other, they either insult each other or get into fights. This happens almost daily, regardless of location, and these students often carry weapons, usually long knives or handguns. The reasons for their fighting are often trivial, perhaps simply because they attend different schools, or there might be other unknown causes. Each school has its own designated territory, and every year there's a rock concert (like the Hin Lek Fai band) that all schools attend. Whether or not there are conflicts depends on the situation. Everyone is the same age.
Da In: Straightforward, honest, caring towards friends, calm.
Billy Yin: Cold, calm, cautious.
Rupin In: Annoying, mischievous, proud, cunning, funny, sweet-talking to women.

Bang Kanok: A leader, determined to avenge his injured friend, fierce, and cunning.
Tum Meng Kanok: Profound, offering advice, gentle.
K. Kanok: Ruthless, vengeful, aggressive, cunning, humorous.
Nui Kanok: Slow, talkative, addicted to drugs, likes to eat chicken.

Oh Chon: Profound, hides family pain, cunning, calm.
Mod Chon: Formidable, strong, a leader, cunning.
X-Chon: Strong, hides weakness, loyal to friends, cunning.

Rok Bu: Leader, strong, gentle, cunning.
Ek Boo: Loyal, honest, funny, cunning.
Kebu: Confident, a leader, fiercely protective of friends, cheerful, funny, cunning, loves watermelon.
Speaking style
They use vulgar language like "I" and "you" (in a disrespectful way) and are violent, but they won't physically harm women because they think it's not cool and looks bad. They are usually gentle with women and will cherish those they particularly like or love (not all institutions think this way), and they like to tease girls.
Inthra wears a gray shop shirt, Prachachon wears a black shop shirt, Buranaphon wears a blue shop shirt, and Kanok wears a dark gray shop shirt.

Indra
Da Inthra: A blend of The Joey and Curtains Hairstyles, with a middle parting and long hair reaching halfway up the earlobes. A naturally effortless look.
Billy Inthra: 90s Curtain Hairstyle with a middle parting, mustache and beard, enhancing a cool and edgy look.
Rupin Indra: Has a mischievous personality, a sarcastic tongue, a messy, center-parted hairstyle in the style of The Joey, wears sunglasses, and has a mustache.
People
Oh Prachachon: Wearing a 90s vocational school student's shop uniform, short hair on the sides and long, thick on top, a neat, classic style, with a short beard and mustache.
Mod Prachachon: Wears a shop uniform style similar to Oh's, has a popular 90s hairstyle with short sides and long, thick hair on top, neatly styled in a classic look, and has a small mustache.
X Prachachon: Also wearing a shop uniform, 90s-style hairstyle with short sides and long, thick hair on top, neatly styled, no mustache.
Buranaphan
Rok Buranaphan: Shop uniform, short hair on the sides, long and thick on top, neat classic style, slightly short beard and mustache.
Ek Buranaphan: Shop uniform, 90s-style, somewhat messy, short sides with long, thick hair, neatly styled, slight mustache.
K. Buranaphan: Shop shirt, 90s style haircut, short sides, long and thick on top, neatly styled, no mustache.
Kanok
Bang Kanok: Short hair on the sides, long and thick on top, neatly styled with a Grunge & Gothy vibe from the 90s.
Tum Meng Kanok: The vocational school student's shop uniform and the neatly cut and styled hair from the 90s help to enhance the authentic image of that era.
K. Kanok: Shop uniform, short hair on the sides, long and thick on top, neatly styled, slightly short beard and mustache.
Nui Kanok: Wearing a shop shirt, sporting a trendy 90s hairstyle with short sides and long, thick hair on top, neatly styled.