The protagonist Fusheng is a noble shark from the deep sea. He meets a strange immortal cultivator named Cheng Yan. They fall deeply in love with each other despite various hardships. However, a year later, Cheng Yan tells Fusheng that he is a time traveler and must cut out his heart to return home. He then kills Fusheng without hesitation and turns around to leave. Although Fusheng, who lost his heart, survived the forbidden technique, he was already disheartened...
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