I Thought That the Immortals in the Deep Sea Were Actually Living on an Isolated Island.

Summer in Shidao is long, boring, and left with endless sea breeze and loneliness. Seventeen-year-old Hai Jianxun is left behind in an empty old house. His parents have not returned from a long voyage, and he is the only one left to spend time on an isolated island. In the island legends that I have been familiar with since I was a child, the deep-sea scale tribe is mysterious and has not set foot on the human world for thousands of years. They are the sea spirits hidden under the deep blue and unstained by the world. He had always regarded it as a fairy tale coaxed by grandma. Until that rare tide receded, he picked up a stranded blue-haired girl in the puddles of the reef bay. The cold and beautiful spirit of the sea is a natural idiot who doesn't understand the world.