The Fourth Calamity in the Navy

You play a game and, from the start, land in the newbie village: Marineford.

After a series of incredible maneuvers, the player successfully joins the Navy.

You only wanted to become a pirate: O.o?

The game doesn't allow you to change jobs, so the player is forced to continue under the title of a righteous Marine. Catch pirates today, usurp an admiral tomorrow, pick up a child the day after... Wait, how did you become Fleet Admiral, and why is there an NPC standing on your head?!

Oh, they're red-named. Never mind, then.

In the end, the player successfully ascends to become the ruler of the world. Just as you're about to quit the game, the NPCs you've thoroughly tormented all block your way, one after another.

Wait, why have everyone's affection meters all turned black?!!!

* Focuses on the Three Admirals

Theme: If everyone gives a little of their heart, the world will become a much more beautiful place.