Seishiro Nagi/ Nagi Seishiro

He frequently reads Shounen Jump, Weekly Shounen Magazine, Young Jump, and Weekly Young Magazine.
He likes it when no one bothers him. He doesn't like it when his free time is taken away.
Last year he didn't get a single chocolate bar for Valentine's Day.
He sleeps 8.5 hours every night.
The first thing he does before getting into the bath is wash his entire body, because otherwise it hurts.
His most frequently used apps are YouTube, Shounen Magazine Pocket, Jump+, Comic Days, Line Manga and several types of games.
The last time he cried was when he was expelled from Blue Lock.
Until he was nine, he received Christmas gifts from Santa; the last thing he asked Santa for was 10,000 yen worth of gacha.
If this were his last day on Earth, he would say, "It hurts to think how I would have spent it. What will be, will be."
If he received 100 million yen (~$739,000), he would use it to cover all his expenses so he wouldn't have to work.
In his free time, he lazes around, plays mobile games, watches videos, and reads manga.
He can trap a variety of objects, even non-football related ones, such as Baro's shoes.
In Volume 8, Chapter 69, Nagi held a "Catch-All-You-Can-Catch Championship."
He lives alone (his parents travel a lot, but they have friendly relations with their son).
He has a cactus named Chokey. He named it that because it was shaped like a pair of scissors, which reminded him of the game Rock, Paper, Scissors.
His morning routine consists of going back to bed, getting login bonuses for the mobile game, saying hello to Choki, drinking a jelly drink for breakfast, getting dressed listlessly, getting ready, and going back to bed.[22]
When Nagi was asked what he did for luck before a duel, he replied, "Nothing special. I've never tried it." It's torture."[22]

Most of this information comes from the official "Egoist Bible" and also from the "Naga" episode.
His zodiac sign is Taurus.
His hometown is Kanagawa.
His parents raised him without interfering in his life.
His foot size is 28.5 cm.
Blood type - O.
His leading foot is the right one.
He doesn't have a favorite football player because he doesn't know them.
He started playing football at the age of 17.
He believes his strengths are that he's a pacifist, doesn't get into fights, and doesn't get angry. He believes his weakness is that everything irritates him.
His favorite food is tea with lemon. His least favorite food is crab because it's hard to get out of the shell. He thinks anything goes best with rice (he doesn't want to think about it).
His hobbies are playing mobile games, reading manga on his phone, and watching videos on his phone.
His favorite season is spring.
His favorite song is "Kiseki" by Quruli.
His favorite movie is Eternal Sunshine of the Spotless Mind.
His favorite manga is Bonobono, a Yonkomanga series by Mikio Igarashi.
Its color is black.
His favorite color is gray.
His favorite animals are sloths, koalas and pandas because he thinks they have a carefree life.
His favorite subject is history, and his least favorite subjects are politics and economics, because they are not interesting to him at all.

Agility: Even before the Blue Castle, Nagi possessed exceptional agility, capable of keeping a mobile phone aloft while leaping down a flight of stairs. Reo immediately recognized his talent for soccer and decided to make him his partner. He can catch the ball with his entire body with deadly efficiency, constantly finding ways to turn unfavorable situations into advantageous ones. Nagi has caught the ball with his toes, heels, and even his back, demonstrating the versatility of his technique. He can catch almost any object and often uses this ability to manipulate and confuse opponents while running down the field. This, combined with his spatial awareness, allows him to position himself perfectly for stunning traps and follow-up shots. After training in the Neo-Egoist League, Nagi has refined his catching technique: he can now catch the ball while being pressed by two defenders and catch powerful passes while moving at high speed.

Perfect Ball Control: In soccer, ball control is essential for players of all levels. The ability to quickly and effectively control an awkward bouncing ball gives the player on the ball an immediate advantage. In most match situations, the first touch often determines success or failure. Nagi possesses exceptional ball control and constantly demonstrates it, setting traps and scoring with near-jewelry precision. He consistently scores at a high level, especially from awkward positions when under pressure from strong opponents. One of his most impressive feats is the fake volley. With his innate ability to control the ball with his body, Nagi is a truly exceptional player. He is one of the best at Blue Lock, despite only starting soccer shortly before joining the program. After analysis by Chris Prince, Nagi understood the fundamentals of ball control and has become an even better player. First-Touch Passing: Thanks to his exceptional ball control, Nagi can use his first touch to make creative passes to a teammate. Nagi often comes up with innovative ways to pass the ball, whether with his chest or with his toe/side/heel. Regardless of the quality or characteristics of the pass, he can effectively convert it into a dangerous attack. He demonstrated this skill repeatedly, most notably when he controlled Isagi's difficult pass during the match against the Japan U20 team, using his heel to chip the ball over the heads of the U20 defenders as Isagi, who was racing toward goal, made a run for it.

Archetypes
Forwards: Also known as strikers, their primary role is to score goals. They often take center stage, as their role is to position themselves in a scoring position. They also take penalties and corners when the opposing team kicks the ball out of bounds. They are usually the ones to start the game at the start of the match and at half-time.
Creative Midfielder: Creative midfielders are players who can create scoring chances for their team, often in situations where it seems unlikely. They typically have good ball control, passing ability, and quick movements, as well as excellent vision and understanding of the game. Thanks to his perfect ball control, fluid movement, and technical skill, Nagi can bring the most complex plays to life. This skill has allowed him to single-handedly score incredible goals at the Blue Castle and continues to develop as a creative playmaker. After training at Manshin City, during which he better understood his strengths and weaknesses, Nagi has become much stronger physically, his feints and ball control have become more refined, and he now takes the initiative in creating plays rather than simply following someone else's plans.

Nagi tends to clash with people he doesn't like. When he meets Baro after Nagi and Isagi lose to Rin Itoshi, they immediately begin arguing and provoking each other, competing to see who is the better of the two, often engaging in one-on-one combat, insulting each other, and even fighting over who gets the single bed in the three-person team room.

After being locked in the Blue Castle and returning to school life, Nagi regrets his former laziness, becomes deeply frustrated by his "inability to change," and misses his "high-strung self." However, after accepting Hirotoshi Buratsuta's offer to participate in the Side-B tryouts, his motivation is no longer driven by external factors like his obsession with Isagi or his codependency with Reo, but rather by a raw, self-directed drive for survival and independent pride. Realizing that his lack of basic soccer skills made him predictable and easily pressured by opponents, he focused on winning the game on his own merits. He actively fights against lazy apathy to prove that his talent can be replicated, and he voluntarily tries to escape the crucible of 301 players to carve out a place on the world stage solely for himself, even at the cost of destroying Blue Lock and his former teammates, because now his main goal is to become the best striker in the world.

After playing against Team Z at the end of the first qualifying round and suffering his first defeat, Nagi begins to show more initiative and cope with the disappointment of losing. He finally gains motivation and is willing to explore these feelings alone if necessary. This only happens because he notices that his friend and teammate, Reo Mikage, seems to be losing to Team Z. Despite his outward indifference, Nagi strives to improve his soccer skills after his team's loss to Yoichi Isagi. This desire for self-improvement continues in subsequent arcs, even damaging his relationship with his friend. By the time the Neo-Egoist League is formed, defeating Isagi has become Nagi's most important goal.

Nagi seems to care for his friends and teammates, especially his best friend Reo, although their relationship becomes strained after the second qualifying round due to Reo's possessiveness towards Nagi, which obscures their shared dream of winning the World Championship. However, deep down, he's selfish, like some of Blue Lock's best players. He cares only about his ambitions, his dreams, and winning.

Despite all this, Nagi shows he can be motivated when challenged. Upon entering Blue Lock, he encounters players who engage him so passionately that he's willing to develop his own strategies and go against Reo, whom he usually deferentially, just to avoid thinking. Nagi also has a brash side, which most often manifests itself in his relationship with Baro, due to a long-standing rivalry that began with him calling him Reo's "slave" and "Painman" due to his habit of saying that everything is pain. He often provokes him and gets into trouble when irritated by Baro's arrogance, something few are capable of, given how intimidating Baro can be. But when he's determined to play, he demonstrates a deep understanding of teamwork and can interact with many players, particularly Reo and Isagi. Although Nagi comes across as apathetic, he's a reliable player who makes some of the most unpredictable moves on the field. Perhaps only Gagamaru can compare to him in terms of creativity.

Nagi is a very lazy and unmotivated man with exceptional soccer skills. He's incredibly talented, possessing incredible reflexes, good speed, and a great leaping ability. But initially, he has no interest in becoming a professional or even playing at all. While he can find a decent job and lead a quiet life, he's content to do nothing and often appears listless, his speech and body language are apathetic, and he frequently refuses to do anything, claiming it's torture. Extremely withdrawn, he lives alone in an apartment paid for by his parents, with only a cactus for company. Before meeting Reo, he had no friends in high school and was often gossiped about or perhaps bullied. However, he shows no interest in socializing and often has to be pulled into things, especially by Reo. At first, he's unwilling to put any effort into football and belittles those who are weak or untalented because everything comes easy to him. He doesn't even know anything about the world's best footballers, much to the chagrin of his rivals. Initially, he's indifferent to football and becoming the world's best striker, preferring to play video games or skip training altogether. He acts reclusive and may actually be addicted to his phone. He barely lets go of it when Henri tries to confiscate his things, and Reo even manages to coax him into playing by reminding him that he can get it back through the goal reward system.

Nagi is a tall young man with a lean but muscular build. He has medium-length white hair that forms a V-shaped fringe between his eyes. He has gray eyes with large irises.

In high school, Nagi wore a school uniform consisting of a white blazer with a cascading star pattern on the collar, but instead of a dress shirt and tie, he wore a dark hoodie underneath. He also wore dress pants and dress shoes.

In Blue Lock, Nagi wears the standard hazmat suit (black with gray stripes) and a tracksuit. During the first tryout, he wore Team V's number 11 jersey, and during the second tryout, he wore Team White's number 7 jersey.