Series
3 entries across 2 seasons · 2015 – 2022
With the seas under constant threat from the hostile "Abyssal Fleet," a specialized naval base is established to counter...
The dawn of a decisive battle nears in Leyte Gulf against the Abyssal Fleet, the mysterious enemies that occupy the sea....
The alien Abyssal Fleet continues to threaten humanity, and the Kanmusu—girls endowed with the spirits of Japanese warsh...