Out of no where, characters from multiple anime are pulled into a city cut off from their own worlds, and forced to live in it.

Franchises:
Pokemon: Ash, Pikachu, Brock, Misty, May, Max, Tracy, Prof. Oak, Dahlia, Dawn, Gary, Iris, Cilan, Serena, Clemont, Bonnie, TRio, Alola Gang, Prof. Rowan, Prof. Juniper, Prof. Sycamore, Prof. Kukui and Burnet.

My Hero Academia: Class 1-A, Allmight, Inko, pretty much main cast as of now.

Fate series: Shirou, Saber, Sakura, Rider, Rin, Archer, Lancer, Taiga, Kiritsugu(revived), Illya, Berserker, Irisviel(Caster), Gilgamesh, Waver Velvet, Iskandar, Shinji(even if I hate the shit, we need some form of drama outside of Emiyas) Ritsuka(Female, FGO), Mashu, Romani, Da Vinci, Olga Marie(Revived, even if she didnt technically die consciously, her body died, her conscious in a infinite cycle of death), Mordred, Frankenstein, Jack The Ripper, Nursery Rhyme, Jeanne D'arc, Seig, Astolfo, Tamamo No Mae, Nero, Altera, Shuten Douji, Billy The Kid, Asteros(the minotaur), Atalanta, Abigail Williams, Jeanne Alter, Kuro, Miyu, Kiyohime.

Rosario Vampire: Tsukune and his harem, Ruby, Kokoa, Gin, Nekonome, the Girl's Fanclub Stalkers(they seem like good idea of comic relief, plus they could come in handy, plus grow friendlier to the cast, I found them entertaining, and I wanna see more of the classic and overlooked yokai)

Sekirei: basically all the main characters, and important reoccurring characters.

Highschool DxD(before the main story): Issei, Rias, Akeno, Koneko, Kiba, Asia, Gasper(hes somehow has his powers sealed in a more stable way), Raynare, Kalawarner, Millelt, Kuroka, Sirzech, his wife, Serafall, Sona and her peerage, Riser(even if most hate his guts), his peerage, Yasaka and Kunou.

SquidGirl: Main Cast.

Inuyasha: Main Cast, Sesshomaru, Rin, Sesshomaru's mother(I looked up to see her name, it's not given from what I can tell, so call her lady Inugami if ya want), Kagome's family.

Soul eater: Maka, Soul, Black Star, Tsubaki, Kid, Liz and patty, Death, Spirit, Stein, Marie, Sid, Medusa, Crona(and Ragnarok), Arachne, Mice sisters, Eruka, Free.

Rwby: Team Rwby, Team Jnpr(Phyrra revived), Penny, Oscar, Qrow, Ilia, Sienna(revived), Salem(no grimm for her to control), Cinder, Neo, Emerald, Mercury, Hazel(I doubt people wanna figure out how to write the insane scorpion faunus), Winter, Ironwood, Glynda, Oobleck, Raven.

Steven Universe(After Future): Steven, Crystal Gems, Greg, Connie, Lars, Sadie, Off colors.

To Love Ru(Before Series): Main Cast(that includes Rito's bigass fucking harem, which will not all go to him now)

Oc(real world): Sean Patrick Lacich(19), William Connor Lacich(goes by his middle name, 17), Merrill Young-Lacich(sean and Connors half brother on dads side, 13), Michaela Young, Elaina Young(Michaela's Daughter, 4 years old, and Sean, Connor, and Merrill's Niece), Gage Michael Arthur( Sean and Connors Half brother on moms side, 13), Shawn David Lacich(Sean, Connor, and Merrill's dad), Barbara Young(Merrill and Michaela biological mother, Sean and Connors ex-stepmom), BJ Arthur(Sean, Connor, and Gages mom).