A few pages ago the creator said that he did not like the way it ended either, agreed on it being lacklaster and he would update it. Currently getting the ending E gets you nothing. And I mean absolutely nothing, no sex, no interactables on NPCs. Similar to ending B (Get defeated by ACE units) and how it needs a sprite change, the game is not 100% done. Keep in mind also that for most people the game is bugged and they cannot reach ending E, going to C2 or D instead. From what I have found, most cases are people cheating to the Fort, enabling all notes as well. That command in the cheating room though does NOT activate the Note Counter variable in the save file, neither is getting the items through save edditors. I personally beat the game once to get a and then messed up and overwrote my save, so I figured I would cheat. That is how I found this flaw. Way I fixxed is: Activated all cheats, went to fort, found the yellow note and then used RpgMakerSaveEdit (for which I dont have a link but just search it and you will probably find it here) to add all the other notes, then went to advanced settings to edit variables and switches. There the Note Counter now appeared, so I put that from 1 to 8 and I could get ending B, ending D and ending E. Ending C is harder to do like this HOWEVER you can view the endings A to C2 if you beat the game I think. D and E are the hidden ones. Hope this helps everyone.