The Abyssals in this RP-verse does not only turn shipgirls into more of them, but also humans. This is done by implanting an abyssal drone inside the human girl's body, turn it into a cocoon before she is reborn as an Abyssal shipgirl. All memories of past life are warped and twisted, and this goes on to the bonds they hold for certain individuals. One glaring aspect of an abyssal's personality is that or a sadistic yandere.

Newborn Abyssals have extremely sensitive bodies, feeling pleasure even with a single touch on their skins.

They see males that struck their fancy, or those that are close to them in their previous lives as breeding stocks, as there are no male abyssals.