Tsukikage, the Nanomachine Ninja, wears sleek black-and-silver armor accentuated by a crimson cape and a helmet marked with a crescent moon. Bound by a vow of silence from his training, he communicates solely through scrolls, punctuating messages with a sharp “Nin!”—a quirk that both endears and irritates his loyal partner, Zanya Kisaragi. His devotion to the Kisaragi brothers drives decisive actions, such as infiltrating Magoroku Shido’s schemes to rescue Genma Todoroki and reclaim the stolen Koryuken deck. Though stoic, his empathy surfaces when Zanya falls to Genma, a single tear betraying his concealed depths. When Elf Kabala’s mind control jeopardizes his autonomy, Tsukikage defies the manipulation through sheer will, shattering his silence in a rare, urgent act to shield the brothers. This defiance cements his role as their silent guardian, blending tactical discipline with unyielding loyalty. Across tournaments like the ABC Cup, he operates in shadows and battlefields alike—gathering intel, sabotaging foes, and anonymously exposing corruption through the Seifukai. His presence weaves through the narrative as both blade and shield, ever anchored by duty to those he protects.