The Shukiro clan was a migrant clan that was made officially a clan a few years after the Fourth Shinobi World War. They became a threat to the five hidden villages because of their thirst for power, leading to the Shukiro Massacre. After the massacre, all the surviving members, except for Ryuun Shukiro, became S-Rank criminals; Taiyō Shukiro and Tsuki Shukiro becoming the two Most Wanted Criminals on the globe.