Kuronryu

Kuronryu ( 黒袞, Kuroonryou Literally Meaning “Black Robes”) are of Longarm Tribe members and a special sub-division within Ursula's Crew that is currently lead by Gyoza who act as elite soldiers, that are called in when conquesting a territory. Whenever not on conquest orders, the Kuronryu is used as special messengers and other positions among the crew. Highly feared by the marines and other pirates, often these men are seen with long black robes and Kasa hats.

History
Most of the origins of the Kuronryu are still very foggy, it was believed that these soldiers were trained, groomed and came from Kenzan Island. Then later on Karate Island, as Gyoza had traveled to this island to refine his skills. Since then, the assassins had joined the group for many different reasons. But in some point in time, whenever Gyoza had met Ursula Rose and joined up with her crew. Naming Gyoza her main combatant and the Kuronryu as he elite guard and forces. Called in as her forces ace in the hole, if a campaign is going to the enemies.