To celebrate their third anniversary, Shiori Hanai prepares a home-cooked meal for her boyfriend. But there's another woman with him when he arrives, and he introduces her as his fiancée. Heartbroken, Shiori drowns her sorrows at a friend's bar, where she meets a kind man who listens to her without judgment. Drunk and emotionally vulnerable, Shiori has a one-night stand with the handsome stranger, with no plans to see him again. But fate has its own plans: some time later, Shiori begins feeling ill, and a hospital visit confirms that she's pregnant. Shortly after, the company Shiori works for gets acquired – and the president is Takahito Seko, who Shiori immediately recognizes from that night at the bar. How will they navigate this sudden twist?