This is an AU and crossover fanfic of the anime: Arpeggio of blue steel ars nova, and Kancolle. The seas almost becomes an another term for a "Graveyard" as these enemies referred to as "The abyssal fleet" arrives suddenly, giving a paranoia to the people who travels through the seas. Air travel to the other countries seems a safer approach, but it does not mean that these stupid humans are willing to lose the seas in the hands of these abyssal fleets. For they LOVED FISHES! [Pics, vids, anime and manga are not mine] Word count in each chapters: 310-1000 Genres: Sci-fi. Action. Military science fiction. Comedy. Humor. Ratings: 12+ above. May contain some themes that are potentially not suitable for the younger readers.