In the kingdom of Irascibilem - a land of aggression - the people were devided into four different classes.

The Dragons were above everyone. there were only 5 of them, and they ruled the land harshly. Everything was eventually decided by them, whether it's rasing taxes, start a war or make new (painfull) rules that will ensure their positions as emperors.
A Dragon can be only a descendant of a previous Dragon - there are no excpetions. It is an exclusive close group that no one can be part of if he is not carring the Dragon blood.

The Wizards are the Council members of Irascibilem - The top court of all citizens (excpet Dragons) which is stationed in the capital city. The council judges the people in any cases broght to them - crimes, marriege, divorces, proposed laws, or  follow The Dragons instructions (Throwing certain people to prison, executions, fining and more).
You don't have to be a descendant of a Wizrad to become one. To become a Wizrad you must have the highest education and be an intelligent person. You must complete 4 years of study in the Wizard's Law University (WLU). The council is not large, and have between 10-30 members.

The Knights are a middle-high class citizens. Most of them are working as officers or commanders, some of them run bussineses. They mostly work for the Council, and they supervise the work of the low class citizens. They all have high economic status. They comprise about 30% of Irascibilem's population.

The Lions are the poor, low class citizens. They work mostly in hard labor such as coal mines, agriculture, construction, import and export of Irascibilem's products.The Lions characterized as strong humans who provides loyal work. A Lion can never marry a Knight/Wizard, but he can become one by being excpeted to the WLU, wich hardly happens because of the class differneces. Only a Dragon can approve a Lion study at the WLU. They comprise about 55% of the population.

Most of the citizens live in the capital city Canibus, the largest and only city (excpet some small agricultural villages) in Irascibilem. 

DRAGONS:

Sehyuk (also goes by the name P-goon).
The head of all the Dragons, practically the president of Irascibilem. His image seem to be kind at first place, but he is a man of cruelty and madness.

Sangdo
One of the five Dragons on Irescibilem, and Sehyuk's brother. He is very submissive, and he hardley takes part in decisions. He became a Dragon just because his father's will.

Other Dragons: Lee Alexander, Jung Daehyun and Kim Jonghyun.

WIZARDS:

Hansol
The head of the Council. He is counted as the smartest Wizard in Irascibilem, but practically he was accepted to WLU because his family have connections. He is very mischievous, and he doesan't take his job seriousy.

Jiho ( also goes by the name Xero)
This Wizrad is desiring Hansols position. He is the only one who passed the WLU perfectly - but he still doesn't get recognition as Hansol does.

Byungjoo (also goes by the name B-joo)
Hansol's best friend. He claims to be a medium (psychic) and he already prevented a mutiny of Lions by warning the Council. The Dragon's doesn't trust him though, and he is suspected to be coaporating with the Lions underground.

Hojoon
Newest Council member (a member for only two months) and Xero's best friend. Hojoon is a strategic genious, but the Council and the Dragons are still questioning his abilities. He secretly wants to overthrow the Dragon's authority.

Other Wizards: Park kyungree, Oh Sehun and Kim Kibum (Key).

KNIGHTS:

Hyosang (also goes by the name Kidoh)
The richest Knight in Irascibiliem. He owns most of the estates in Canibus, and he runs the quarry site of gold. He is one of Sehyuk's best friends, and they support each other when the other needs help. He married a Council member (Kyungree) to be able to have effect in the decisions and rules.

Sanggyun (also goes by the name A-tom)
Hyosang's brother-in-law. He desires to take over Hyosang's estates in the future. He went to the WLU and failed. He was not accpeted to the Council, of course.

Yoonchul (also goes by the name Nakta)
One of Hyosangs's relatives. He helps him interact with his workers (Lions, all of them) and he has connectiona in the Lions underground.

Other Knights: Byun Baekhyun, Bang Yongguk and Lee Hyori.

LIONS:

Dongsung (also goes by the name Gohn)
One of Hysang's workers. He is the head the Lion's underground. He plans to take down the authority of the Dragons by a massive rebellion.

HyunHo (also goes by the name Seogoong)
Gohn's faithful assistant. One of Hyosangs's workers too.

Sangwon (also goes by the name Yano)
Gohn's younger borther. He is very young so he can't work, and his brother keeps preventing him to join the undergound.

Taeyang (also goes by the name Jenissi)
A wanderer, who decided to sattle in Canibus. He works as a cleaner at the Council Hall, and made a good connection with some Knights and Wizards.

Other Lions: Lee Chaerin, Choi Minho and Seo Eunkwang 

I hope I made it clear as possible :)
It my first time writing something like this, and there will barley be any (only 2-3 couples, maybe)

WISH ME LUCK ^^