Thousands of years ago, there was a beautiful planet amongst the stars where the deities lived. Among them, there were six powerful gods that include the God of Fire, God of Wind and the God of Mountain maintained the peace in the realms. During a dangerous battle with dark forces, the deities suffer a huge blow. Wind is nowhere to be found after rescuing Fire. In order to find an alternate energy source to save their home, Fire travels to the glorious age of Tang Dynasty where he meets a person who looks exactly like his long-lost love, the God of Wind and ignites a complicated romance between the two.

Helan Mingyu, a bright young woman, forms a deep bond with the 9th Prince, Xiao Chengxu. Though they develop mutual feelings, fate intervenes—news of Chengxu’s death on the battlefield forces Mingyu to marry his older brother, King Xiao Chengrui. As Chengxu achieves military victories that strengthen the kingdom, Chengrui grows increasingly jealous. When the truth about Chengxu's mother's death emerges, Chengxu sets out to claim the throne and seek justice.

沈螺（郭碧婷 饰）是是一个善良的平凡女孩，大城市中繁忙的生活令她感到万分疲惫，于是决定来到海岛休养生息，享受宁静安稳的慢生活。一次偶然之中，沈螺遇见了名为吴居蓝（冯绍峰 饰）的男子，很快，沈螺便发现，吴居蓝竟然并非人类，而是属于一个十分古老的种族——鲛人族。
美好的爱情跨越了种族产生在了沈螺和吴居蓝之间，两人需要面对的，是比寻常爱情更多的考验和更艰险的旅程，可即便如此，他们还是选择了坚持，选择了握住对方的手永不分开。每一个鲛人的身上都有一颗鲛人灵珠，这颗价值连城的灵珠使得鲛人总是遭到人类无情的杀害。贪婪的周家老爷为了得到灵珠不惜绑架沈螺以其性命要挟吴居蓝，为了沈螺，吴居蓝甘愿献出生命。