Haida, a woman cursed with chronic bad luck, signs up for a dating app during a "what-the-heck" phase. She matches with Kuroi, a man who joined for equally reckless reasons. Their first date at an aquarium goes disastrously: Haida’s heels break, a flyer slaps her face, they get soaked by a dolphin show, and a lottery prize turns out to be a giant pickling stone. Conversation never clicks, and the mood is unmistakably low-key and awkward. Yet despite the astonishingly unexciting date, they somehow make plans to meet again.

The story follows the pair as they continue to date—visiting a zoo, a dam, a bowling alley, and various everyday spots. Both are introverted overthinkers with little romantic experience. Haida’s bad luck leads to situational mishaps, while Kuroi’s deadpan one-liners and dark past (his oshi got married and retired, prompting his app sign-up) provide the humor. Their banter is dry and surreal, often veering into absurd hypotheticals, such as what would happen if Kuroi turned into a euglena. Despite the awkwardness, they gradually grow comfortable with each other.

The narrative unfolds in a slow-burn fashion. The pair agree to go on five more dates before deciding whether to start a relationship. Key arcs include a Christmas illumination date, a Valentine’s Day episode where both struggle to express their feelings, and an amusement park outing. Over time, mutual affection becomes evident, yet both hesitate to verbalize it. Eventually, after several dates, they confess and begin officially dating. The manga continues to depict their ongoing, gently unfolding romance, marked by considerate but awkward interactions and a steady progression of intimacy.

Set in contemporary Japan, the series revolves around the mundane yet endearing moments of two lonely adults navigating a relationship. The tone is comedic and slice-of-life, emphasizing deadpan dialogue and the charm of a romance that doesn’t rely on dramatic misunderstandings.