Yin Xian, a professional audio tuner suffering from hyperacusis, was forced to bring his equipment downstairs to fight back against the deafening square dance noise in order to defend his peaceful life. Not only did he unexpectedly reach an acoustic modification agreement with the enthusiastic lead dancer Liu Dama, but he also had to face an arrogant opponent showing off expensive speakers. For this reason, Yin Xian decided to use hard-core acoustic technology to create a directional sound field, leading the aunties to conquer the city's square dance competition. Whether this tuner, who extremely hates noise, can win the sound wave showdown and find the inner perfect movement amidst the noisy hustle and bustle of the mortal world has become the biggest suspense.