Kazuo Tachibana forms one half of the Tachibana twins alongside his brother Masao. Specializing in acrobatic and aerial soccer techniques, the pair relies on exceptional synchronization and speed. Initially playing as forwards for Hanawa in elementary school, they later transitioned to midfielders for various Japan national youth teams. Their signature Skylab series techniques demand both brothers' presence on the field, involving high-risk aerial maneuvers frequently resulting in injuries. During elementary school, Kazuo and Masao represented Hanawa in the national tournament, renowned for their speed and combination plays honed through platform-jumping drills. Matches against teams like Nankatsu and Meiwa showcased their aerial capabilities, though they ultimately faced defeat. They wore jersey numbers "9" and "10". Continuing at Hanawa Middle School, the twins developed the advanced aerial shot, the Skylab Hurricane. Despite its initial effectiveness, they lost in the national quarter-finals. Their performance secured selection for the Japan Junior Youth team, requiring one twin to adapt to midfield. In the International Junior Youth tournament, they collaborated with Hiroshi Jito to create the Skylab Twin Shot, scoring a critical goal against Argentina. Executing this technique caused injuries, and a failed attempt against France jeopardized Japan's position due to exhausted substitutions. Post-tournament, Kazuo focused on strengthening his legs and core at Akita High School. Initially missing AFC Youth Championship qualifiers after dismissal from the national team for perceived overreliance on each other, the twins returned with refined individual skills. They adapted their Skylab techniques defensively, notably countering aerial attacks from China's Fei Xiang to protect goalkeeper Genzo Wakabayashi. Against Mexico, their aerial prowess neutralized the "Five Aztec Warriors," but a deliberate foul by García caused injuries, ending their tournament. Professionally, Kazuo joined JEF United Ichihara. During the Golden-23 arc, coach Kira repositioned the twins as a double volante. Physically matured, they sealed the injury-prone Skylab Hurricane, as seen in a J1 League match. However, in a decisive match against U-22 Australia, they insisted on playing center-forwards and successfully executed the Skylab Hurricane to score Japan's first goal, incapacitating themselves afterward. Physically identical to Masao in height and weight throughout their careers, Kazuo stood 166 cm tall and weighed 56 kg by high school. His playstyle remains intrinsically linked to his brother, their techniques demanding perfect coordination. Their legacy evolved from offensive specialists to versatile players contributing defensively, though high-risk techniques persistently impacted their physical durability and playing time.