Masao Tachibana and his twin brother Kazuo hail from Akita Prefecture. They debuted as forwards for Hanawa SS in elementary school, wearing numbers 9 and 10 and relying on speed and synchronized movements amplified by their twin connection. During a national elementary tournament match against Nankatsu SC, they unveiled aerial techniques, though defeated, cementing their reputation for acrobatic, high-risk maneuvers. At Hanawa Middle School, they advanced their aerial soccer approach, creating the Skylab Hurricane for the 16th national junior high tournament to challenge Nankatsu. Elimination in the quarter-finals followed, with their techniques consistently posing injury risks from physical strain. Selected for Japan's Junior Youth (U-16), Masao shifted to midfield. In France's International Junior Youth Tournament, the twins executed the Skylab Twin Shot with Teppei Jito against Argentina, securing a critical goal but sustaining injuries. A repeat attempt against France failed, worsening their injuries and disadvantaging Japan with no substitutions left. Post-tournament, they enrolled at Akita High School, strengthening legs and core to reduce injury risks. In the World Youth arc (U-20), they prioritized national team preparation over immediate J-League entry. After a loss to RJ7, coach Gamo dismissed them temporarily over dependency concerns, prompting solo training for independent skills. Rejoining for the AFC Youth Championship, they adapted aerial prowess defensively; Masao countered Fei Xiang’s assaults against China using a Skylab technique to protect goalkeeper Genzo Wakabayashi. Against Mexico in the World Youth tournament, their aerial play neutralized the "Five Aztec Warriors" until García’s deliberate foul injured them, ending their participation. Post-high school, Masao joined JEF United Ichihara alongside Kazuo, wearing jerseys 40 and 41. During the Golden-23 arc, coach Kira repositioned them as a double volante. Matured physiques could no longer endure the Skylab Hurricane’s demands, leading them to seal the technique after a J1 League match confirmed its untenability. Yet in a crucial qualifier against U-22 Australia, they insisted on starting as center-forwards to revive the Skylab Hurricane. Taro Misaki provided the cross, enabling a vital goal before the technique incapacitated them. Masao consistently wore jersey number 2 for Japan (U-16, U-19, U-20, U-22). Physical records show growth from 143 cm and 35 kg in elementary school to 167 cm and 60 kg professionally. He is right-footed with blood type B. The twins’ high-risk aerial coordination earned them epithets like "Heaven-sent children of aerial soccer," evolving through defensive adaptations and eventual retirement of unsustainable maneuvers due to physical limits.