Desperate to save his father from crushing debt, Mi-eum is compelled to accept a risky offer from a ruthless loan shark. The terms are clear: assume the role of a house servant and get close and gather vital information about the enigmatic young master of the house, Baek Jitae. Upon entering his new workplace, Mi-eum's mission takes an unexpected turn as he's assigned to assist Jitae with an unusual task - his bath. Mi-eum understands that this unique opportunity is his key to getting closer to his target. Yet, the moment their eyes meet, Mi-eum realizes that no matter how much he may cry and weep, there is truly no turning back now.