There have been several productions titled *Mr. Sunshine*, so without more identifying details it is difficult to pinpoint which one this refers to. The most widely known is a 2018 South Korean period drama in which a young man born into slavery travels to America, becomes a US Marine officer, and returns to Joseon Korea during a time of political upheaval and foreign intervention, where he falls for a noblewoman who has secretly joined the resistance against imperial forces. Their forbidden romance unfolds against the backdrop of a nation struggling to preserve its independence.