While inspecting a wharf, young Amano, president of an urban planning company, meets beautiful laborer Takako and falls in love at first sight. However, she does not return his affections, so he steals her ID card and goes on the run from the infuriated Takako.

On his wedding day, Ryosuke’s secret—that he’s marrying a man—shocks his family, sparks chaos, and gets even messier when Mizuki’s ex shows up uninvited.