In "My Sister Would Do Anything to Embarrass Me," the protagonist deals with a sibling rivalry where her sister deliberately creates embarrassing situations to humiliate her. From sharing awkward childhood stories to sabotaging her social interactions, the sister's antics lead to frustration and humiliation for the protagonist. 

As the story progresses, she reflects on her sister's behavior and realizes it may stem from her own insecurities. Ultimately, the protagonist learns the importance of communication and stands up for herself, fostering a more understanding relationship with her sister. The narrative explores themes of sibling dynamics and the complexities of family bonds.