My Neighbor Is Way Too Perverted! Christmas Special

I was thinking about finding the context of the main thread to the story, it led me to the prologue, when i tried to play it it came out that it was a demo, so it's not even worth playing it because the game is not finished, it looks promising but it doesn't have If I play something that I will not understand the story. When the game is finished I'll go back to the main game and change my rating but therefore it is this.