Yoichi Isagi

Rank: 299th → First Screening 274th → Second Screening 15th → Third Screening 1st

Blue Lock Selected Team Position: OMF, Jersey Number 11.

The protagonist of the work. A second-year high school student. Height 175 cm.

Although he had the specs to be the ace of a prestigious school in his second year, he was an ordinary player without any striking weapons as a striker. However, after realizing his outstanding "spatial recognition ability" through the advice of his teammates Kunigami and Chigiri during the first screening, he established a style of scoring by understanding the field, predicting the future, and making direct plays after breaking behind the DF. Later, he grew into a striker called "The Child of Blue Lock" by the media and international media. His skills and physical abilities are average as mentioned, but his "eyes" and "brain" are highly regarded even by world-class players, and the world-class striker Marc Snaffy highly praises his "unique talent." He is a genius with a natural "adaptability" who does not hesitate to destroy himself to evolve.

From a young age, his senses were exceptionally sharp, reacting sensitively to mosquitoes at a distance or slight changes in the weather, and his "spatial recognition ability" can be considered an extension of this.

In the prefectural tournament final, he passed the ball to a free teammate because he was taught that "soccer is a sport played by everyone," which led to a defeat, leaving him with regrets of "if I had shot it myself at that time." Although he initially resisted Ego's words at the Blue Lock briefing, those regrets were deeply shaken, and he was the first to start running among the 300 players gathered.

He is not cheerful but has high sociability and actively approaches both friends and foes without fear to become stronger. He started from almost the bottom rank, and his lack of confidence was noticeable when he was not aware of his weapon, but gradually he acquired confidence and pride. He harbors a strong egotism of "I want to win with my goal," and is extremely greedy for victory. Therefore, he feels pleasure in looking down on the losers when intoxicated with the taste of victory, and sometimes lashes out harshly at teammates who have lost their will to fight when he is emotional (though he apologizes calmly after the match). Although he generally respects even the most egotistic rivals, he is hopelessly incompatible with his teammate Kaiser in the "New Hero Wars."

In the dormitory test, he was about to hit the immobilized Igaguri with a ball but changed his target, saying, "I came here to change my life, to become the best in the world, I have to beat someone stronger than myself," and hit Kira, the strongest participant, ultimately causing Kira to glare at him angrily. In the first screening, he initially struggled without being aware of his weapon, but he was the first to notice and suggest hints to break the situation, leading to scoring at crucial moments after realizing his "spatial recognition ability," and completing the equation of "spatial recognition ability × direct kick" in the final match. In the second screening, he suffered a defeat in the first match and had his partner Higaraku poached, but in the match he attended with Nagi, he learned Nagi's specialty of off-the-ball movement and breaking through the back, and was told by the eliminated Nagi that his talent lies in "adaptability," leading to even more remarkable adaptation and evolution during the match. In the third screening, he was taught the concept of "thinking in 'reflex'" by Hiori. In the "New Hero Wars," he observed the play of Kaiser, a genius of the same type as himself, further utilized his spatial recognition ability, captured the entire field by shaking his head, and successfully simulated the movements of all players, naming this "Meta Vision." According to Hiori, the core of Yoichi's ability is "the ability to devour an arch-enemy on the battlefield," which is "Yoichi's 'desire' (ego)."

In the "New Hero Wars," he was troubled between England, where he usually watches matches, and Germany, where his admired player Noel Noah plays, but was inspired by Higaraku's thoughts and chose Germany. In the first match against the Spanish team, he started on the bench but joined in the middle following Noah's instructions. Although he tried to score himself, he was ignored by players who played according to the team's philosophy, in addition to the high level of Kaiser and others, and the match seemed to end without him making an impact. In the final phase, he forcibly took the ball from a teammate and assisted Kunigami, leading to the winning goal and the team's victory.

After the match against Spain, the bid annual salary was 17 million yen (according to Reo, "equivalent to the annual salary of a major company executive"), and he received an offer from Berserk Dortmund, a rival team of Bastard Munich.

In the following match against England, he was selected as OMF. During the match, inspired by Kaiser's movements, he developed the ability to recognize the field from a four-dimensional perspective beyond two and three dimensions, named "Meta Vision." This ability itself had been used reflexively by Yoichi until now, and by using it consciously, he achieved a level of spatial recognition ability comparable to Kaiser's. He can now activate it at will, but on the other hand, the intense physical exhaustion causes him to stagger after using "Meta Vision" fully in one play.

Furthermore, in the final phase, inspired by Nagi's remarks and Yukimiya's actions and conversations, he realized the concept of "believing oneself to be the protagonist and being driven by something," "protagonist feeling," and used it to read and utilize the protagonist feeling of allies and opponents, reading their plays and countering their actions and predictions. In the final moments, inspired by words from Noah, who had decided to follow him, he reached the truth that he "wants to beat Kaiser," and despite Kaiser's attempt to block the shot, he succeeded in reading the action behind the attempt to block the goal and passed to Yukimiya, assisting in the goal. This action by Yoichi was intended to make Kaiser a clown, and Kaiser called him "crazy." After the match, he reconciled with Yukimiya, and Kaiser, having calmed down, challenged him to a match as a striker, saying, "Let's compete as strikers." Afterward, due to the backlash from overusing "Meta Vision," he collapsed and was bedridden for over 10 hours.

In the match against England, he performed well in both offense and defense, achieving 2 assists, and was selected as the Man of the Match (MOM) by the Blue Lock administration. After the match against England, "Bastard Munich" expressed their desire to pair him with Noah, saying, "We want to use him as a new type of MF who can play both offense and defense," and placed a bid of 50 million yen on him (the same amount offered to Ness). International media called him "the next Modric" and "the center of Blue Lock is indeed Yoichi Isagi." However, in response to this evaluation, he told the reporter who came to interview him, "I'm glad to be evaluated for playing that way," but also said, "In the end, I want to be a presence that can score goals as a FW," "I want to live as a striker," "I want to win with my goals, and I'm not willing to give up that ego."

Before the upcoming match against Italy, he asked Kunigami for special training to become ambidextrous in order to beat Kaiser, but Kunigami advised him to stop, saying that training to be ambidextrous would only crush his abilities, and he was refused. However, when Higaraku and Chigiri, who had come to meet him and Kunigami, realized that the new weapons and battle formations they learned in the "New Hero Wars" were minor changes and evolutions to make the most of his greatest weapon, he understood that there was no need to force himself to become ambidextrous, and what he needed was the technique to shoot from his left leg as well. Although not as perfect as his right leg, he mastered the direct shot from his left leg as a side weapon. Also, his physical abilities had significantly improved through training in Blue Lock, and in the match against Italy, he was selected as OMF, and his body had caught up with his "Meta Vision"-accompanied thoughts. Despite Ness shifting his center of gravity to interfere with his right-leg shot, he shook it off and scored the opening goal with a direct shot from his left leg.

Furthermore, when Snaffy appeared in the Star System, inspired by Noah's words, he asked Raiichi to mark Snaffy within a 2-meter radius semi-circle, and in coordination with Raiichi, they successfully read and defended against Yuvarse's attack patterns. After the Star System ended, in exchange for the condition "if you fail, you lose your regular position," he requested Noah to let Hiori play. In the final phase, he prompted "reflection" with Hiori, sharing their ideal plays without looking at each other, and scored the winning goal with an assist from Hiori. This goal was valued by Lorenzo as a "100 million yen goal," and indeed, his annual salary had risen by 100 million from the previous time to 150 million, making him the second highest in Blue Lock at the time.

The player who served as the motif for the author is Filippo Inzaghi.