A @agjn456 Follow This video is currently unavailable 0:00 2× −10s +10s 0:00 / 0:00 猫背、巻き肩を一瞬で矯正する胸張りストレッチ。 これマジで効果あった… A video posted by @agjn456 on X (formerly Twitter) (June 22, 2026 ・ 動物 ・ 0:15). Watch and download it on XCLYP. Like 0 Favorite 0 Download Open on X Share