Essence of the Abyssal Fleet
*Gain the ability to call forth corrupted shipgirls in the form of abyssals.Abyssals range from weak destroyers with little intelligence to the most powerful Princesses and Demons. You start with a single princess or demon level abyssal like Battleship Princess.
*You have all the skill, knowledge, and charisma to make a legendary admiral and if nothing else can get the most out of your fleet. Consequently your fleet is much more likely to take a liking to you much quicker then you otherwise might expect. Don't be surprised if you wake up one day and need a bigger bed or room.
*Any Abyssals lost can simply be rebuilt or resummoned with all of their memories intact.
*Gain limited control of the seas and can create massive tropical storms that interfere with reconnaissance and sensors not your own.
*Optionally you gain a powerful abyssal form the equal to any of the Princess or Demon type abyssals. It may either be an installation or a conventional shipgirl form. No you don't have to be female.
*Any ships you or your fleet destroy or capture can be corrupted and added to your fleet.
*Gain an base that can support your operations such as an old abandoned island or an undersea abyssal base. The base is always stocked with the materials to repair and resupply your forces.
*Optionally you can introduce naturally occuring Abyssals and Kanmusu in a world who will rise to fight each other.
*Optionally you may be dropped into the Kantai Collection universe.