As his sexual awareness increases, Gwang-ho no longer likes the scent of his mother, who wears heavy make-up as she sells cosmetics door-to-door. Eun-sook, an assistant nurse who is the complete opposite of Gwang-ho's mother, becomes the object of all of Gwang-ho's attention and affection. Absorbed in his thoughts, Gwang-ho is oblivious of the news of the presidents death and the picture of the new president replacing the late president in his classroom. Gwang-ho receives a letter of luck and starts sending it to people around him. As those people start vanishing, Gwang-ho is racked with guilt, suspecting the letter of luck is the cause of their disappearance.

Na-young works at a post office and is sick and tired of being around her shamefully unyielding mother and her pushover father who's excessively nice. The only thing that she can look forward to is her trip abroad in a few days. But one day, her father leaves home without any notice. Her mother doesn't care what happens to him and doesn't care to look for him. Na-young has no choice but to give up her dream trip abroad and to search for her father instead. Once she arrives at her parents' hometown, Na-young is shocked to meet someone she'd never expect, even in her dreams.

As his sexual awareness increases, Gwang-ho no longer likes the scent of his mother, who wears heavy make-up as she sells cosmetics door-to-door. Eun-sook, an assistant nurse who is the complete opposite of Gwang-ho's mother, becomes the object of all of Gwang-ho's attention and affection. Absorbed in his thoughts, Gwang-ho is oblivious of the news of the presidents death and the picture of the new president replacing the late president in his classroom. Gwang-ho receives a letter of luck and starts sending it to people around him. As those people start vanishing, Gwang-ho is racked with guilt, suspecting the letter of luck is the cause of their disappearance.