Jang Ha Na and Choi Won share a deep platonic friendship that has endured for two decades, weathering all of life’s ups and downs together. As Ha Na nears her 30th birthday, Won praises the idea that men improve with age, comparing them to fine wine, while suggesting that women, in contrast, age like grapes turning into raisins. Eager to challenge his perspective, Ha Na proposes a wager to see who will get married first before reaching 35. Inspired by the popular Taiwanese series “In Time With You,” will these two friends take the ultimate step beyond friendship?