In the early spring, the ice and snow melted, and beyond the offshore sea where the Feng'an clan relied for survival, there was a sea of Miyin that was feared by the world. The deep-sea siren is good at weaving illusions with her soft songs, bewitching passing sailors to fall into the abyss. Over the years, countless fishing boats have never returned, and it is a forbidden place that everyone in the coastal tribes keeps silent about.
Three days ago, a fishing boat carrying five fishermen went out to sea to fish and completely disappeared in the vast ocean. In order to find the missing clan members, the clan's only three alien beast resonances decided to go deep into the dangerous sea, accompanied by a mysterious girl and the deep-sea giant Xige. The four young girls and the giant beasts went on adventures and fought side by side. While searching for the surviving clan members, they also fought against the sea monsters dormant in the deep sea, and gradually solved the deep-sea nightmare that has haunted the Feng'an clan for ten years.
Concept: Nordic medieval style, fantasy adventure, passionate growth