|“||Basically, your main priority is being able to take the initiative.||”|
— Tsurugi, 
Zantetsu Tsurugi (剣城 斬鉄, Tsurugi Zantetsu) is a supporting character in the Blue Lock (Manga).
When first arriving at Blue Lock, he was a member of Team V during First Selection. He is currently ranked #53 out of the original 300 forwards chosen to be part of the Blue Lock Project and is currently on the bench for the Blue Lock Eleven.
Zantetsu has spiky dark colored hair and glasses that he wears even while playing. At Blue Lock, Zantetsu wears the standard-issued body suit (black with gray stripes) and tracksuit. During the First Selection, he wore Team V’s blue #6 jersey and wears Team V's gray-capped cleats. During Second Selection, he wore Team White's #53 jersey.
Zantetsu is not a very intelligent individual, and when speaking he mainly uses idioms, and due to that Reo and Nagi has nicknamed him "Baka Zantetsu." On the other hand, he is a calm and cool-headed individual.
- Winger: The winger aims to attack the opponent's goal by driving to the byline for a cross, or cutting inside to overload. They need to be technically proficient and fast enough to do so and if their dominant leg is the opposite of their flank, they can be a potent attacker on goal.
Zantetsu being left footed makes him a very good inverted winger, being quick enough to get to the byline for a cross, but also being able to cut inside and shoot or pass. His explosive acceleration enables him to get the better of most defenders.
Explosive Acceleration: Zantetsu's acceleration is a key weapon in his arsenal. With his quick reactions and incredible acceleration, he can react to any movement his opponent makes and intercept them. Chigiri noted that within 10 meters, even he could not overcome Zantetsu's acceleration, indicating that Zantetsu's speed is most dangerous over short distances.
Left Foot Shooting: Zantetsu has a powerful and accurate left foot shot. His favoured tactic during a game, is to use his speed to bypass a defender, before cutting inside to his own shooting zone and firing a shot on goal. This shot is incredibly fast and accurate, but Zantetsu can also convert it into a cross, to pass to another player in the box.
- The name Zantetsu means "sword that cuts iron."
- Zantetsu's surname Tsurugi means "is sword" (剣) and "castle" (城).
- He has an older and younger brother.
- His favorite movie is "Parasite".
- His favorite animal is rhino beetle.
- His hobby is meditating, especially sun bathing.
- His favorite food is hamburger and curry.
- His disliked food is fish.
- His hometown is Saitama.
Blue Lock [@BLUELOCK_WM]. Twitter. https://twitter.com/BLUELOCK_WM
- Blue Lock Manga: Chapter 22.