The following is a line from Kantai Collection (艦隊これくしょん), abbreviated as KanColle (艦これ), a Japanese web browser game about ship girls (艦娘). There are dreadful antagonists from them. They are called as "Abyssal Fleet" a.k.a. "The Abyssals"(深海棲艦). Abyssals are highly organised. The species near highest ranks are able to speak human languages. They are basically aggressive character and look down on ship girls. When they sink (die) completely, they are also described as being reborn as ship girls.
Original line in game is difficult to understand, cause it written in strange katakana and their sounds become distorted. So it is displayed here in correct Japanese.