The male and female protagonists are born in pairs. In the previous life, they were a grudge couple who divorced due to misunderstanding in 2025 and only resolved their knot later in life. Reborn and returned to 1976 when they first met, they became educated youth who went to the countryside to the same educated youth center. They both carry regrets and longings for their past lives, but they all mistakenly believe that the other hates them, so they start an extreme ambiguity and pull in which they test each other, secretly protect each other, but due to the limitations of the times, "it is hard to say that I love you".
