When I reunited with my childhood friend from the countryside, who I used to play with covered in mud, for the first time in ten years, I found that she had grown into an adult. Kaho Imai

``Hey, do you remember this amulet?'' After being hurt in the city, Kaho returns to the nostalgic countryside with old memories in her heart, where she reunites with her childhood friend Yutaka for the first time in ten years. However... ``I guess I forgot my promise to Kaho... I said I would become Yu-chan's wife in the future...'' The two's thoughts intersect again.