In the small seaside town of Shinsu-eup, where the villagers closely monitor each other's every move, Yoon Bom is a figure who carries a question mark. Speculation abounds as to how Yoon Bom, once a successful teacher in Seoul, ended up in this town... But one figure boasts an overwhelming presence that instantly steals all their attention: Seon Jae-gyu, the townspeople's number one target of vigilance. When Bom enters his radar, her monotonous daily life begins to unravel!