Between Maternal Aunt and Paternal Aunt (S01E09)

Un Mi and Ji Eun, Jin Hong's younger sister, are no longer on speaking terms, and their animosity flares up when they unexpectedly encounter each other at Jin Hong's home. Shortly after, Jin Hee runs into Ji Eun and is taken aback by how much she has matured, leading her to feel a growing fondness for her. However, oblivious to Ji Eun's connection with Jin Hong, Jin Hee misinterprets the sight of them together as evidence of Jin Hong being disloyal to her mother.