In South Korea, she's Betty, the Vietnamese daughter-in-law who gives her in-laws a headache—straightforward in speech and impulsive in action, jokingly called "disrespectful" by her mother-in-law.
However, this seemingly "unruly" daughter-in-law is, in her husband's eyes, a heroine who saved their marriage, and, more importantly, a very special person in her mother-in-law's heart.
The mother-in-law decides to accompany her daughter-in-law back to her family home in Vietnam. This cross-border visit completely unveils the secret behind Betty's strong personality.