Soo-hyun, a fourth-year elementary school teacher, is about to get married. One day, Yohan, a student in her class, comes to Soohyun, who was busy and happy. Yohan confesses to Soohyun that he is experiencing domestic abuse. But the next day, John's lies await Soohyun.

第一季最后一幕突然现身、疑似“死而复生”的郑进湾（李栋旭 饰）究竟藏身何方？他和郑智安（金慧峻 饰）将如何联手反击？一切未解之谜都将揭晓。

An action drama in which a niece who lost her parents and grew up in the hands of an uncle who runs a shopping mall, faces a new truth after her uncle's sudden death.