Red Line

Back in high school, Kang Suji was known as a champion of justice, famous for her inability to tolerate injustice. After getting married and returning to her hometown, she ends up living next door to Baek Hee-do, who had been her senior during their school years. However, for reasons unknown, he shows open and blatant hostility toward Suji… A tightrope-walking reunion romance between a woman who cannot tolerate injustice and a man who cannot tolerate her.