Young-ran, transformed into a complete opposite of her past self, disguises herself as a kindergarten teacher, Boo Se-mi, and sets foot in Muchang for the first time. As she adjusts to the unfamiliar routine, she encounters Dong-min, who happens to pass by her at the Gahoejang mansion, and a strange tension begins to flow between them.

Young-ran struggles to adjust to kindergarten life. Her first class and the theft of her kindergarten tuition deepen her conflict with the villagers. Amidst nationwide attention focused on the widow of a defunct conglomerate chairman, Young-ran hosts a welcoming party of her own to avoid the villagers' suspicions.

An unexpected guest appears at the welcoming party, and the crisis becomes an opportunity. While Yeong-ran gains the trust of the villagers, Lee Don, the headman's lawyer, faces a threat. Yeong-ran's plans are disrupted, forcing her to implement Plan B, which sparks unexpected national news coverage.