Kyoufuu All Back (Gale All Back) is a viral Vocaloid song and animation produced by Yukopi, featuring the voice of Kaai Yuki. Released in March 2023, the music video depicts a young girl struggling to walk against a powerful gust of wind that pushes her hair into an 'all-back' style. Its charmingly simplistic art style, catchy rhythm, and relatable situation—stepping outside only for the weather to ruin your appearance—triggered an explosion of fan-made parodies across YouTube, Niconico, and TikTok. Creators frequently replace the original character with figures from popular anime, video games, or VTubers while maintaining the signature marching animation. The meme has since become a global staple of internet culture, representing the small, humorous frustrations of everyday life.