Genzo Wakabayashi emerges as a Japanese goalkeeper whose journey begins dominating elementary school football fields. Born into affluence, his family's wealth provides a private pitch and elite training resources. For his tenth birthday, he requests coaching from Olympic bronze medalist Tatsuo Mikami, initially dismissing Mikami's credentials before forging mutual respect. Mikami identifies Wakabayashi's potential to become the world's finest goalkeeper, dubbing him "SGGK" (Super Great Goalkeeper). At Shutetsu Elementary, Wakabayashi demands honorifics from non-starting players like Mamoru Izawa and Shingo Takasugi, aiming to fuel their competitive drive. His intensive home training sessions elevate them to starting roles. During the Shizuoka Prefectural Tournament finals, he confronts accusations of favoritism, declaring football an equalizer transcending wealth. Shutetsu claims both the prefectural and national championships. An injury sustained against Mizukoshi Elementary compromises his ability to block Kojiro Hyuga's powerful shots, though adaptations depict varied outcomes. Aged twelve, Wakabayashi relocates to Germany, joining Hamburger SV's youth squad under Mikami. He endures brutal bullying from teammates who deliberately target him with violent shots. His resilience during this period ignites a rivalry and friendship with Karl Heinz Schneider. Wakabayashi ultimately halts the bullying through physical confrontation, ascends to Hamburg's primary goalkeeper, masters German while residing with the Draxler family, and maintains a near-even record against Schneider's long-range attempts outside the penalty area. For Japan's U-16 national team, he initially backs up Ken Wakashimazu. In a training match against Hamburg, Wakabayashi intentionally permits Japan to attack freely in the first half to gauge their development, resulting in a 5-1 loss. He provokes Hyuga post-match to fortify Japan's resolve, a tactic coordinated with Mikami. Later, he serves as a translator and supports Wakashimazu during international competitions. Professionally, Wakabayashi signs with Hamburger SV under the condition of retaining Japanese nationality for international duty. Injuries repeatedly challenge his career: wrist damage during the World Youth tournament demands recovery periods, while a critical eye injury in an Olympic quarterfinal against Germany requires emergency surgery. Post-Olympics, he joins FC Bayern Munich alongside Schneider to pursue UEFA Champions League glory. His goalkeeping showcases extraordinary reflexes, agility, and mastery of techniques like the SGGK Catch. Wakabayashi specializes in neutralizing long-range shots, employing signature skills such as "SGGK" and "Guardian Angel" to dominate the penalty area. Physically, he grows from 161 cm (55 kg) in elementary school to 183 cm (77 kg) as an adult. Personality-wise, he blends confidence with sporadic arrogance but consistently prioritizes team success, often risking physical harm. His core belief positions football as a universal equalizer regardless of socioeconomic status. Wakabayashi aligns with the ISFP personality type and Enneagram 8w9, exhibiting competitiveness, loyalty, and practicality.