This is an after story to the game called Parasite In Love by Night Asobu.itch.io. This is purely non-canon and all characters belong to their respective owners. If you wish to see the game-play for a better understanding, you can find the play-through by the YouTuber ManlyBadassHero along with links in his description to the creators of said game https://youtu.be/4pjVK6kZnTE