Ma Guilan has spent her entire life raising cattle on the grasslands. When she travels to the city to attend her grandson's 100-day celebration, her son and in-laws look down on her for her simple clothes and constant talk of cattle. Nobody knows that she is actually the mysterious tycoon behind 120,000 yaks, Beiyuan Pastoral Industries, and a vast cordyceps business. Faced with betrayal by her own family and commercial fraud, she takes back the 51% stake she had originally given her son. When her true identity is finally revealed, everyone's fate is turned upside down.