The "Smoke Binding Seal" is a potent and intricate sealing technique meticulously crafted by Kuro's mother to ensure his survival when he transitions into his smoke form when met with any outside force that could kill him should his smoke form be dispersed.
Overview[]
This seal is placed on the neck of Kuro, directly under his right ear and works as a passive protection system for him anytime he's in smoke form rather fully or partially. The Smoke Binding Seal exerts a gentle influence on the winds within its confines, guiding them to embrace and cradle the smoke with a protective embrace. As a result, the smoke remains compact and cohesive, resisting the winds that would otherwise scatter it. Even in the face of gales that would typically dissipate their form, Kuro enveloped by this seal finds his smoke shape preserved with an uncanny tenacity. The success of this sealing jutsu hinged upon his mothers mastery over wind manipulation and her deep understanding of the properties of smoke. It was made as a symbol of the Iburi Clan's resilience and adaptability, but ultimately the development of this jutsu killed many of their clansmen until it was eventually perfected, allowing the mark to harness the forces of nature itself to safeguard their existence.