Six years into their marriage, Taehyung and Jisoo are still struggling to understand each other, let alone fall in love. But what if certain incidents, which they found horrific at first, led them to dive into each other's worlds, which they had made sure never crossed before? What if they started to develop feelings that they had failed to nurture in their six-year-long relationship all of a sudden? Love can blossom at any moment, after all. Serendipity, it must be called, is a phenomenon of finding desirable discoveries unintentionally, without seeking them.