The Hamasaki Clan

The Hamasaki Clan (浜崎一族, Hamasaki Ichizoku) is a family of shinobi in Sunagakure known for their use of Chakra flow. Because of their active involvement in Suna's defese they were given a place for the Head of the Clan in the Suna Council. Some of the members of this clan can unlock the Kurogan, a kekkei genkai that alows them to have a better control over their Chakra.

However, because they were the most exposed in case of an attack, this clan had lost most of their members to the point where today there exists only one half-blood, Yamiko Hamasaki.

Background
The Hamasaki clan came along with The Kazekage Clan and set their houses all around Sunagakure's boundries in order to protect the village in case of a surprise attack.

The clan is divided into the Main House (宗家, sōke) and multiple side branches (分家, bunke). The head is chosen on en ereditary line by the rule that boys are first in line. During Third Shinobi World War most of the members of the side branches lost their lives and as for the main branch, Yosuke's son and the twin of Yamada, Yukatari, was kidnapped.

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I have to go to study, I'll continue soon.