Yosumi

Yosumi ( 四隅, Yosumi. Literally Meaning “Four Corners”) are a group of mercenaries, who were World Government experiments that went rouge. This group was first mention by Karasugami, who is a former member of this group. With her defection, the group only had three members remaining. Currently have appeared to be affiliated with Ursula Rose and also seen doing other jobs for other clients of theirs.

History
Originally all four of the members were government experiments in trying to create the prefect assassin. However, some seemed to have gone wrong and the group members had went rouge attacking their creators and thus going out into the world. Karasugami was first to mention this world, during the Hakuri Pirates conflict. She went rouge from this group for some unknown reason, joining up with the Roronoa Pirates and cutting all of her ties with the group. Since then, leaving only three members, they had done several big time assassinations of very important figures. They made their full appearance after the 2 year skip and during the New World arc. The group had seen clashing off with the like’s marines and aiding Ursula’s forces in conquesting islands for her in the East Blue.