“I’m tired of submitting resumes, tired of stressing, and tired of getting rejection messages!” Mireu, a sixth-year university student looking for a job. Mireu is on a trip to Kumamoto, Japan. On the last day of her Kumamoto trip, Mireu accidentally meets Dongjun, a Japanese exchange student, due to an unexpected accident. Impressed by Dongjun's thoughtful consideration, Mireu dreams of a romance with him, but she has to return to Korea. “We’ll never see each other again, will we? Maybe I should have at least asked for his number…” Mireu, who returns to Korea after parting ways with Dongjun, cannot sleep due to regret. The next morning, what happened? I clearly fell asleep in my Seoul home, but when I woke up, I was back in Kumamoto, Japan! Yesterday repeats itself exactly, and the only thing that doesn’t repeat is Mireu herself. “Anyway, if I go back to Korea, I’ll be hounded by job searching, so I might as well enjoy my trip to Japan to the fullest and get a romance in too.” Mireu is filled with hope that she might be able to complete the romance with Dongjun that she couldn’t achieve the day before. Will Mireu’s romance come true?