Joseon Attorney: A Morality

The Promise of a Wedding Ceremony (1x15)

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After realizing there's nothing that can stop his father's evil deeds, Ji-seon decides to let Yeon-joo and Han-soo use him for their revenge. Yeon-joo suggests Ji-seon to use their wedding ceremony as a chance to interrogate Executive Minister Yoo. On the day of the wedding, Yeon-joo faints after getting poisoned, and Executive Minister Yoo is pointed as the perpetrator.