What happens when love curdles into betrayal and transforms into vengeful rage that transcends death itself? Tonight's episode delves into one of Korea's most enduring ghost stories – the tale of the Teahouse Spirit. When ambitious merchant Min-ho manipulated a tea master's heart to search for a nonexistent treasure, his final act of cruelty created something far worse than guilt.

In the pressure-cooker environment of South Korea's elite education system, being second-best can feel like failure. At Hanyang Girls' High School, Min-ji Park's obsession with academic perfection drives her to commit an unthinkable act against her rival, Ji-eun Kim.