In the hopes of sharing her power with her loved ones, Sayuri's nurturing ambition led her to develop her own Juinjutsu, which came to be known as Sayuri's Juinjutsu (小百合の呪印術, Sayuri no Juinjutsu). The seal is created through the possession of Sayuri's unique chakra, which contains a fair share of metallic particles. Once her chakra has been transferred to another person, these particles attach themselves to the iron fragmentations within the individual's blood cells. As the human body continues to circulate more blood, the metallic particles are spread throughout the body of the individual, eventually forming a seal around the person's heart. Thus, similar to the Puppet-Master Seal, requires the heart to be struck with great force in order to be removed.