Around year 2000, Liao Miao-jun, who just graduated university, accidentally became the assistant for ace music producer Wu Pei-zu. Miao-jun is resilient but reckless; Wu is talented but hard to please. With different famous singers as their client, this funny pair of mentor and mentee is bound to create new sparks they never imagined. Through conflicts and compromises, the two face the challenges together to shoulder the responsibility and sense of mission as “the producer”.