Wikia

The 10 Great Families (위대한 가문, widaehan gahmoon, Great Family) are the direct descendants of the 10 Great Warriors who first came into the Tower with Zahard. They are part of the Ruling Class in the Tower, and their members are often extremely powerful, blessed with the power of their forefathers, meaning that many of them are Rankers. Just as Zahards are considered Royals, 10 Great Family members are considered Nobles.

Another interesting point about these 10 Great Families is that a few selected daughters of the family have the chance to become Zahard's Princesses, and gain an enormous authority and power in the Tower.

Another point to note is that since Zahard and the 10 Great Warriors entered the Tower by themselves, it means that the latter simply settled down and slept with Tower natives or if not, one another, in order to obtain offspring.

Note: If a Family head or house head (가주, gahjoo) has multiple wives or husbands, then there will be a main family and branch families. The Koon Family, notably, has the most branch families.

Families

Arie Family

The Arie family is headed by Arie Hon. Arie Hon stays at the 100th floor of the Tower as the head of Arie family, and his territory is the largest of the 10 Great Families. This family is also famous for its prowess in swordsmanship.

Koon Family

This family is headed by Koon Eduan. Kun Eduan has the greatest number of wives and second-greatest number of children out of the 10 Families. There is a lot of veiled competition among his children, and too much competition has created the 'official' fights, held once a year, after which the winners are decided to be his true children, and the losers are abandoned. This family is famous for its cunning intelligence.

Ha Family

This family is one of the 10 Great Families, it is led by Ha Yurin. The well-known Princess and High-Ranker, Ha Yuri Zahard, comes from this family. This family is blessed with incredible physical strength.

Biduh Family

The Biduh Family is headed by Po Biduh Gustang. This family is famous for its Research Association.

Eurasia Family

This family is well-known for their ability to manipulate Shinsoo and for producing the strongest Princess of Zahard to date, Eurasia Enne Zahard. This family is led by Eurasia Blossom.

Tu Perie Family

This family is led by Tu Perie Tperie.

Han Family

This family is led by Ari Han. (Note: The family name is actually unconfirmed, as SIU has not revealed which part of his name is the family name.)

Yeon Family

This family is led by Yeon Hana. None of the 'descendents' of this family actually possess Hana's blood, as Hana is a virgin. All descendents are actually the children of Ilarde, known as the 'godmother.' This family is known for its female members' tendency to look down on men.

Hendo Family

This family is led by Hendo Lok Bloodmadder. All members of this family except Bloodmadder have short lifespans due to a pact that Bloodmadder made with a Guardian in exchange for eternal life. However, this family has the greatest number of children out of the 10 Families. This family has the fewest Rankers and the least influence in the Tower among the 10 Great Families.

Possibile Families

Bia Family

Lo Po Bia Ren hails from this family, and has helped grant it great authority in the Tower by becoming a Ranker loyal to the Zahard Family. However, it has not been confirmed if it is one of the 10 Great Families.

Mule Family

Mule Love hails from this family. It has special family contracts with the guardians over shinsoo, such as the Mule Clan Contract. Mule Love's parents were killed by a FUG member. Since FUG's main targets are Zahard and the 10 Families, the chances of the MUle Family being of the Ten increase. Koon Agero has also stated that the Mule Family was of a lowly class. It is not known if his mocking statement is correct or incorrect. Many believe that the Mule Family rules over the Twentieth Floor. This however is unconfirmed.

Notes and Trivia

SIU mentioned a Ma Family earlier, although he may have changed its name.
There is a debate on whether either of the Bia Family or the Mule Family is one of the 10 Great Families.
It is unlikely the Mule Family is one of the 10 Great Families as Koon treats them as inrelevent and wasn't aware of their existence.