Lotsofpeoplewhoarenotfromtheshow truyện

It's a story where a mystery nerd gets isekai'd into the Black Butler universe. Okay... so I just realised it's not going to be a whacky comedy. There's also going to be a lot of OCs... Most importantly, some of the characters belong to Yana Toboso, the Creater of Black Butler. At least for the most part. It is my first time uploading a story.