This is a fusion with the musical "A Gentleman's Guide to Love and Murder", which is based on the movie, "Kind Hearts and Coronets". You don't have to have seen either for it to make sense, but it will add a extra layer if you have seen the musical or listened to the cast album. (For example, most of the chapter titles and subtitles are songs/lyrics)
My LLYBB Artist, CaptainAdwen, who was of great encouragement during this whole process. I couldn't have done this without her! She also helped me nail down the non-canon costumes for Viktor and Yuuri. Pictures will be embedded but if you want an early peek at the pictures, check out these tumblr posts: Picture 1 Picture 2
If you've read any of my long stories/series, ya'll know that I love charts and all sorts of extra data. And as part of the plot revolves around World Standings, I've actually tracked this information for all of the skaters, including past performance years. (Yes, it's just because the plot depends on it, not because I love stats. That's my story and I'm sticking to it.) I will be posting clips of the relevant stats along the way so you can see how Yuuri is doing, but in Chapter 50 (the Addendum) I will include more information about these stats and a download link if you want to see the complete sets for the two years. Feel free to comment or email me if you want more info after reading that. (Or that might just be my pathetic hobby.) You can also google Figure Skating World Standings to get an idea of how they look in the real world.
This is an AU based on show canon, but some events, and some key scenes or dialog, will occur differently or have different results for plot reasons. Major non-spoiler differences are: 1) Yuuri knows about but doesn't remember the banquet from the start, and 2) Viktor doesn't retire and he skates Agape. Because Viktor is in the GP series, some other skaters get moved around to accommodate him. Yuri P.'s story gets changed significantly - remember in Ep. 10 when Viktor wondered if Yuri would have fought so hard if he hadn't retired? Well, this is that story because Yuri's not Yakov's only hope for Russia, doesn't get Lilia as his choreographer, and skates to completely different programs. He also doesn't follow Viktor to Hasetsu so he doesn't get the Yurio nickname yet.
As for the timeline, I know there are a lot of theories so I chose to make the Sochi Grand Prix happen in 2015, based on the meta from other obsessed YOI fans.