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Iwashimizu Rei and Shinonunkai met at a meeting with each other's father and mother.
From the moment I learned about the shocking secret of Rei's birth, the heart of the sea, which had been firmly closed, opened to Rei little by little.
The sea is desperately struggling to not hurt Rei and Rei, who are tossed about by their odd fates.
The loneliness and tragedy of two fifteen year-old boys. And when Rei. learned that the sea is the only one who can heal her sorrow, the sea. realized that Rei is the true lover.