Li Wuchen signs with Best Actress and CEO Mu Jinyan's company as an artist under her, and participates with Mu Jinyan in the all-star romance variety show "Star Passionate Love for a Summer". Relying on his sharp-tongued and eccentric personality, astonishing musical talent, and martial arts strength, he quickly becomes popular on the show. Through day-and-day companionship with Mu Jinyan, they gradually move from constant bickering between boss and employee to ambiguous heartbeats. As his original songs go viral, Li Wuchen steps onto a larger musical stage, rushing toward his own heartbeat and love amidst the radiance of his career.