An Yamo, the leader of a debt collection company, employs both aggressive tactics and a sweet disposition to attain her objectives. However, when advantageous, she is not hesitant to depict herself as a victim. Despite her charming façade, she stands as a mighty force who has yet to be defeated by an outstanding debt. This all changes when she encounters an intimidating foe. Having utilized all available methods of communication, An Yamo decides to send her staff to retrieve the debt in person, only to come face-to-face with a stunningly attractive male who also attends her school. The silver-tongued gentleman suggests a deal that involves trading her obedience for his hush money, resulting in a chaotic school year full of power struggles and clashes between the tyrannical An Yamo and the sadistic prince.
