Tsubasa Ōzora, the central protagonist, displayed exceptional devotion to football from infancy. As a one-year-old, a truck accident was mitigated when the football he held absorbed the impact, leaving him unharmed and cementing his lifelong bond with the sport, embodied in his motto, "The ball is my friend." This event solidified his identity as the "heaven-sent child of soccer," showcasing remarkable speed, stamina, dribbling, and shooting skills even young. Relocating from Tokyo to Nankatsu City at age 11 marked a significant phase. There, he forged bonds with steadfast teammate Ryo Ishizaki, elite goalkeeper and initial rival Genzo Wakabayashi, and Brazilian legend Roberto Hongo, a friend of Tsubasa's seafaring father. Roberto became his primary mentor, guiding his technical development and advising him to join Nankatsu Elementary School's team over prestigious Shutetsu. At Nankatsu, Tsubasa formed the "Golden Combi" partnership with Taro Misaki, defined by near-telepathic coordination. This period also ignited enduring rivalries with players like Meiwa FC's Kojiro Hyuga and Musashi FC's Jun Misugi, the latter competing while managing a serious heart condition. His progression continued through national elementary and middle school tournaments. He led Nankatsu to multiple championships, overcoming challenges like Wakabayashi's temporary injury absence and his own shoulder dislocation during a critical match against the Tachibana twins. He developed signature techniques such as the Drive Shot and later the Neo Drive Shot. His leadership expanded to Japanese national junior teams, culminating in captaining the U-16 squad to victory in the International Junior Youth Tournament in Paris after initial setbacks without him. Fulfilling his dream, he trained in Brazil, joining São Paulo's youth team and forming a key partnership with Pepe. His performance in the FIFA World Youth Championship, scoring a hat-trick in the final against Brazil, cemented his global reputation. Personal relationships evolved alongside his career. Sanae Nakazawa, his primary supporter since elementary school and Nankatsu manager, became his romantic interest. After a long-distance relationship during his Brazil stint, he proposed following the World Youth victory, presenting his training ball and an engagement ring. They married in a Western-style ceremony attended by teammates and rivals, later relocating to Barcelona, Spain. Sanae became pregnant with twins, their due date coinciding with the Madrid Olympics football tournament finals. His professional career advanced with a move to FC Barcelona in La Liga. Initially, he faced adversity, relegated to the reserve team (FC Barcelona B) by coach Van Saal due to tactical incompatibility with star player Rivaul, despite recording 12 goals and 11 assists in three B-team matches. An injury to Rivaul provided his promotion opportunity to the main squad, where he proved his value, notably scoring in a critical match dedicated to Sanae and their unborn children. His club success included winning the Liga championship. Concurrently, he represented Japan in the Olympic Games, balancing international duties with Barcelona commitments. His technical repertoire expanded significantly. Beyond foundational skills, he mastered complex techniques like the Overhead Kick, the Neo Drive Shot (enhanced with fiercer spin), and collaborative maneuvers such as the "All-Japan Twin Shot" with Misaki and the "Neo Drive Tiger Twin Shot" with Hyuga. His leadership was formalized through captaincy roles for Nankatsu Middle School, Japan Junior Youth (wearing jersey #10), and later the senior national Olympic team.