Umi Monogatari

📖 SYNOPSIS

In the depths of the ocean, sisters Marin and Urin lead a peaceful life. Their world is disrupted when they discover a ring that has fallen into the sea. They surface to return it to its owner, a human girl named Kanon. Kanon, heartbroken over a recent breakup, reveals the ring was a gift from her ex-boyfriend and throws it away. Marin, sensing Kanon's lingering feelings, decides to help her find the ring, believing it will mend her heart. The search leads them into the forest, where Urin inadvertently breaks a seal near a shrine, hinting at a deeper mystery and potentially dangerous consequences for the sisters and Kanon. The story explores themes of love, loss, and the unexpected connections between the human and marine worlds.