Red Line

Kang Su-Ji, the righteous crusader famed in high school for her intolerance of injustice. After marrying and returning to her hometown, she encounters Baek Hui-Do, her senior from her school days, as her neighbor. Yet for some reason, he displays blatant hostility toward her... A precarious reunion romance between a woman who cannot tolerate injustice and a man who cannot tolerate her. (Source: KakaoPage, translated)