A rising politician and his mute wife's tense marriage begins to unravel after a call from a kidnapper turns their lives upside down.

Based on a popular 2017 Web Novel of the same name, it tells the love story between a lovely "sunbae" and a bold "hoobae".

Song Ah is a 29-year-old music major, but this is actually her second time in college. Despite her passion for music, the fact that she started later than her peers means she faces hurdles everywhere she goes.