A close and dangerous cohabitation with the pseudo-religious son has begun! Chung-ah was swindled by her uncle who she trusted and her parents disappeared, saying they are chasing their missing uncle, and Cheong-ah suddenly lives alone in an empty house. But it wasn't just Chung-ah's family that was scammed! The biggest pseudo in the autonomous district, "Millennium Adventist," was also deceived by her uncle. And "Yohan," the son of the headmaster who came to Chung-ah's house. He's dragging his luggage in...! God, is this cohabitation gonna be okay?