Zantetsu Tsurugi enters the Blue Lock Project as a striker for Team V in the First Selection, distinguished by explosive acceleration and lethal left-footed strikes. Preferring raw athleticism over tactical thought, he deploys two signature moves: the Double Wing Boost, merging breakneck speed with synchronized passes, and the Jet Counter, a rapid burst to slip past defenders. These abilities cement his reputation as an inverted winger adept at slicing through defenses to deliver precise crosses or shots. Though physically gifted, Zantetsu grapples with comprehension, frequently mangling phrases or misinterpreting instructions—a tendency that earns him the mocking nickname “Baka Zantetsu” from teammates Reo Mikage and Seishiro Nagi. To counter perceptions of dimness, he dons non-prescription glasses, a futile attempt to mimic intellect. This stems from his identity as the academic outlier in a family of dentists; his parents, though scholarly, encourage his athletic path despite his struggles in conventional learning. Driven by an early awareness of his physical superiority, Zantetsu channels his energy into sports, choosing sprinting—and later soccer—over competing with his family’s academic legacy. His unorthodox training, which included sprinting against trains, sharpened his unmatched short-distance speed, enabling survival in Blue Lock despite initial confusion over challenges like the Dormitory room test. Abandoned temporarily by Reo and Nagi during the Second Selection, Zantetsu proves resilience by advancing solo through sheer speed and adaptability. The spin-off *Episode Nagi* delves into his childhood dedication to running, strained family dynamics, and eventual acceptance of his intellectual limits as he carves a future separate from dentistry. By the Neo Egoist League, Zantetsu evolves into Paris X Gen’s right winger, utilizing his left-footed precision and acceleration for swift counterattacks. While complex strategies elude him, his specialized techniques and relentless physicality maintain his competitive edge, marking his transition from a figure of comic mishaps to a tenacious athlete embracing his singular strengths.