I'm probably gonna regret posting this because it's absolutely long as hell but fuck it I'm doing it.
So a while back I made a bunch of roulette wheels set up for Project SEKAI characters (initially just the Humans and Virtual Singers minus Miku, but now I have those plus one for each SEKAI name and one for each human member of each group). After I made them, I spun it to make a Unit Shuffle AU and this is what I have so far for each new unit.
ALSO WARNING. THIS IS GOING TO BE A HELLA LONG POST. SO BE WARNED.
A group of music lovers with different goals that share an end game. To be happy with the music they make.
Almost all of the soft spoken or introverted ones, and most of them had a big want to perform music. I had the idea that Toya was talking with Tsukasa near the girls school, saw Ichika with her guitar practicing and let Tsukasa go off to find Saki while he went to go talk to Ichika? And then Haruka heard them talking about starting a band or music group and then went of to talk to Nene (who I guess could have been a friend from before becoming an Idol because of the theatre troupe). I'd like to think their SEKAI becomes a song like "Doppelganger" or just becomes "Doppelganger" outright, with Miku and Rin as the first Virtual Singers in the SEKAI.
Group 2 - True Heart×Smile
A group of preformers at Phoenix Wonderland, with shows mostly about the "Happiness Rangers". The group of school girls hope to inspire people to smile and be themselves.
Literally just the story of Happiness Sentai SaniSani☆Wonder April Fools group but swap Haruka for Honami. Like I'm not even joking, 3 out of the 4 are in that group. Emu did not let the others name the group, absolutely not. Their SEKAI would also probably become a like upbeat yet dark song, like "Lost One's Weeping" or outright that song (100% Neru would be commissioned for it). Len and Miku would be the two Sekai Virtual Singers. (Also, when the person who was offering me help saw Len was the primary Virtual Singer after Miku, they said "he is too fruity to keep his masculinity with this group." Send help /j)
Group 3 - More Hope @ 23:00
A group that works under anonymity, normally posting right before midnight.
In this version, Ena and Kanade make a small group on Nightcord (that's the platform name they mostly talk on after all), but they're originally a 2 person team. Ena does all the visual work while Kanade does all the musical work. Unfortunately, Kanade realises that her newest song is best as a male-female duet and asks Ena what they should do. She literally leaves her room, drags Akito in and tells him to help Kanade out for one song. The next day, Kanade is out shopping and bumps into Airi, who's performing on the street to let out steam. Since in this version, Kanade's online school is run by the girl's school, Kanade recognizes the uniform and asks for some help. They then make their group and Airi drags Kanade to school events. Luka helps Miku as the Virtual Singers. No idea for a SEKAI song.
A group of people working as a mixed Idol group.
I have no ideas for this group besides Mizuki and Tsukasa almost fight Cheerful*Days until Minori stops them. The Virtual Singers starter pack for this SEKAI is Miku and KAITO.
A group of music lovers all working to help make a bright and vivid world for all.
After Saki is back from the hospital, she quickly reunites and reforges her bond with Shiho. After failing to reconnect with Honami and Ichika, Shiho takes Saki to Visit Street and the cafe that An's dad runs. She's helping out with the music that day, and Saki convinces Shiho to play with them to just have fun. They eventually agree to help An try and spread some fun times and maybe even beat RAD Weekend. Rui happened to see them struggling to move a whole keyboard and offered to help them in exchange for assistance with a few ideas he had. An and Saki agree instantly, and now Shiho babysits them all. Their SEKAI would probably become the song No Logic and they get helped by Miku and MEIKO.
Oh yeah, I also made the unit costumes for Similar Divide.