The delinquent Kyoko meets an eccentric intern teacher. His name is Katsuya Honda. The relationship that began by serendipity connects the fate of the two inseparably, but the reality that awaits them is far from being blessed by anyone. Nevertheless, the most important person in the world for Kyoko and Katsuya, Tohru Honda, is born. They hope to spend a happy time together blissfully and lovingly. But things don’t turn out that way… This is the story of Tohru's parents, Kyoko and Katsuya, of a fleeting yet irreplaceable time. "If you never get lost, you won’t be able to find out your answer."