Hui-gyeong's affair with Yong-gil is exposed, igniting a bitter clash between the two families as years of pent-up resentment finally erupt. Old wounds resurface, pushing Seon-hae and Seon-chul to confront and put an end to the families' long-standing entanglement. Meanwhile, Ju-ah and Hyun-bin are left conflicted as they come face to face with their feelings for each other.