Explosive! A nursing home caretaker hides a top-tier opera singing voice, and four national-level masters secretly impart their art. Upon graduation, Yu Xiaoman works as a caretaker in a nursing home, learning traditional arts from four elderly residents, unaware that they are reclusive national-level art masters. She possesses extraordinary talent and masters consummate skills, yet mistakenly believes she is only at a beginner's level. To enter a competition and nourish the elderly with health supplements, her opera vocal performance shocks the entire audience, yet she only wins second prize. A passerby records the performance and uploads it online, where it instantly goes viral. The nursing home suddenly faces demolition, and to protect the elderly's home, she rushes to the rematch stage. The entire internet eagerly awaits, while Yu Xiaoman remains completely oblivious to her sudden viral fame.