I met my childhood friend who grew up in the countryside and we had been playing with him in the muddy world for the first time in ten years, and when I reunited with him, he had grown up to be a mature body.

"Hey, do you remember this amulet?" Kaho, who was hurt in the city, returns to the nostalgic countryside, with old memories in her heart. There, he meets his childhood friend Yutaka for the first time in ten years. However... "I wonder if I've forgotten about my promise with Kaho... I told her I'd be Yu-chan's wife in the future..." Their feelings intersect once more.