Shingo Aoi is a Japanese midfielder distinguished by exceptional speed, agility, and technical dribbling. He debuted as Nakahara Middle School’s number 12 in Gifu Prefecture, where his acrobatic ball control earned recognition in elementary national tournaments, including a juggling victory over the Tachibana twins. A pivotal friendly against Nankatsu Middle School ended in an 11-0 loss, yet his ability to bypass all opponents except Tsubasa Ozora caught Tsubasa’s attention. When Aoi considered quitting football, Tsubasa gifted him three coins (25 cents, 10 francs, 100 yen) as good luck charms and urged him to continue. At 15, Aoi moved to Italy relying on an invitation from relative Mr. Shinnosuke, only to discover his death upon arrival. Stranded and defrauded of 2 million lire by an Inter Milan impersonator, he survived as a shoeshine boy and street juggler. Inter Milan’s kit manager Calimero secured him a trial with Inter Primavera. During a training match, Aoi scored an overhead kick against goalkeeper Gino Hernandez, securing his spot. Despite relentless bullying from teammates—particularly Matteo—and initial contempt, Hernandez and Calimero encouraged his perseverance. Aoi earned the team’s respect by reversing a 1-0 deficit in a critical match, scoring the decisive goal via a one-two play with Matteo. For the World Youth Asian qualifiers, coach Minato Gamo designated Aoi as Japan U-20’s "trump card." He initially ignored the call to avenge his defeat by Italian libero Salvatore Gentile, who had bested him in an Inter-Juventus match and mocked his style. Aoi joined Japan mid-match against Thailand, using his speed and agility to reverse the score. Suspended for accumulated fouls against China, he developed the Right-Angle Feint with Ruud Gullit to counter Gentile. At a World Youth welcome party, Gentile countered with the Right-Angle Defense. After Italy’s tournament elimination due to injuries to Hernandez and Gentile, Kojiro Hyuga’s advice refocused Aoi on team objectives. In Japan’s group match against Italy, Aoi defeated Gentile using the upgraded Right-Angle Tornado Feint and scored against Hernandez, cementing his role in Japan’s midfield "Golden Trio" alongside Tsubasa and Taro Misaki during the finals against Brazil. Post–World Youth, Aoi transferred to Serie C1 club FC Albese after failing to join Inter Milan’s senior squad. He befriended Nigerian player Bobang and contributed to Albese’s promotion to Serie B. In the decisive promotion match against Hyuga’s AC Reggiana, Aoi and Bobang equalized after Hyuga’s two goals. Though Albese lost, they advanced due to AlbinoLeffe’s concurrent loss. Aoi later represented Japan in the U-23 Olympic team during the Rising Sun saga. His signature techniques include the Right-Angle Feint, Right-Angle Tornado Feint, and Rovesciata (overhead kick). Nicknamed "Prince of the Sun," "Midfield’s Dynamo," and "Green Light" (a pun reflecting his unstoppable speed), he stands 167 cm (later 169 cm) and weighs 55 kg (later 57 kg), with right-leg dominance and blood type A. Key relationships encompass his rivalry with Salvatore Gentile, mentorship under Tsubasa Ozora, friendships with Gino Hernandez and Bobang, and initial antagonism-turned-camaraderie with Matteo.