ERMA

(In this world, Y/n is a big brother to Erma and son to Sam and Emiko. He doesn't have any Yokai traits and is just a normal teen who wants to learn more about the paranormal and become an author like his father. Also a friend of Felicia.)

CHARACTERS: Erma, Sam William, Emiko William, Emily Williams, Michael Williams, Regan Williams, Yori Yureimoto, Mitsu and Momo Yureimoto, Osamu Yureimoto, Amaya Yureimoto, Ena Yureimoto, Mayumi Yureimoto, Kentaro Yureimoto, Fumiko Yureimoto, Rin Yureimoto, Felicia, Amy, Terry, Connor, Sidney.

HIGHSCHOOL DXD

(In this world, Y/n is a childhood friend of Issei and Irina. He also has a Boosted Gear and is in a relationship with Xenovia. But some girls still want to have him to themselves.)

CHARACTERS: Rias Gremory, Akeno Himejima, Asia Argento, Yuto Kiba, Issei Hyoudou, Koneko Tojo, Irina Shido, Gasper Vladi, Ravel Phenex, Kunou, Azazel, Xenovia Quarta, Rossweisse, Sona Sitri, Tsubaki Shinra, Genshiro Saji, Sirzechs Lucifer, Serafall Leviathan, Zeoticus Gremory, Venelana Gremory, Milicas Gremory, Vali Lucifer, Kuroka Toujou, Yasaka.

BNHA

(In this world, Y/n is a childhood of Izuku and the twin brother of Bakugo. He's far more chill than Bakugo and has the same Quirk just like Bakugo, only weaker but he also can created smoke. He got into Class 1-B and was friends with everyone in the class. Except for Monona)

CHARACTERS: All Class 1-A, All Class 1-B, Hitoshi Shinso, Mei Hatsume, Mirio Togata, Nejire Hado, Tamaki Amajiki, Shota Aizawa, Vlad King, All Might, Present Mic, Thirteen, Cementoss, Midnight, Power Loader, Nezu, Recovery Girl, Eri, Endeavor, Hawks, Best Jeans, Mirko, Ryukyu, Gang Orca, Mt Lady, Kamui Woods, Mandalay, Pixie-Bob, Ragdoll, Tiger, Gran Torino, Fat Gum, Death Arms, Kota Izumi.

RWBY

( In this world, Y/n is an Owl Faunus who is also a Qrow student and a childhood friend of Ruby and Yang.  He and Ruby are close, as people though both are dating which makes them blush. His weapon is a sword that is also a gun.)

CHARACTERS: Ruby Rose, Weiss Schnee, Blake Belladonna, Yang Xiao Long, Jaune Arc, Nora Valkyrie, Pyrrha Nikos, Lie Ren, Qrow Brawen, Emerald Sustrai, Marrow Amin, Oscar Pine, Penny Polendina, Sun Wukong, Winter Schnee, Glynda Goodwitch, Bartholomew Oobleck, Peter Port, Coco Adel, Fox Alistair, Velvet Scarlatina, Yatsuhashi Daichi, Taiyang Xiao Long, Raven Brawen, Neptune Vasilias, Arslan Altan, James Ironwood, Ghira Belladonna, Kali Belladonna, Ilia Amitola.

LITTLE WITCH ACADEMIA

(In this world Y/n is just a normal teen who seems nice to all of the students and teachers at Luna Nova Academy. But actually, he come from a lineage of warlock who sworn to protects the town from any threat.)

CHARACTERS: Akko Kagari, Lotte Jansson, Sucy Manbavaran, Diana Cavendish, Amanda O Neill, Constanze Albrechtsburger, Jasminka Antonenko, Ursula / Shiny Chariot, Hannah England, Barbara Parker, Wangari, Molly Mclyntre, Anne Finneran, Samantha Badcock, Miranda Holbrooke, Croix Meridies, Andrew Hanbridge.

OWL HOUSE

(In this world Y/n is an adopted son of Lilith Clawthorne and a friend of the Golden Guard, Hunter who knows how to use all kinds of magic better than anyone. He has a bit of a crush on Luz.)

CHARACTERS: Luz Noceda, Eda Clawthorne, King, Willow Park, Amity Blight, Gus Porter, Boscha, Edric Blight, Amira Blight, Viney, Jerbo, Barcus, Skara, Lilith Clawthorne, Perry Porter, Camila Noceda and Vee.

AMPHIBIA

(This world Y/n is the only male friend in the group consists of Anne, Sasha and Marcy. He got transported into the other world as well but at the cost of him falling and hitting his head, and forgetting everything about his old life. He walked alone, trying for weeks until Anne and the Plantars found him. Anne was sad when his friend/crush seems to forget about her and the others but he will do anything to help Y/n remember.)

CHARACTERS: Anne Boonchuy, Sprig Plantar, Hop Pop Plantar, Polly Plantar, Frobo, Mayor Toadstool, Toadie, Wally Ribbiton, Maddie Flour, Ivy Sundew, Sasha Waybright, Captain Grime, Marcy Wu, King Andrias, General Yunnan, Lady Olivia, Joe Sparrow Mr and Mrs Boonchuy.

STEVEN UNIVERSE

(This world Y/n is the first friend that Steven has before meeting Connie. The three of them are close and will do anything together. He is a human being but fights alongside Steven and the Crystal Gems against all kinds of threats. Is in a relationship with Spinel.)

CHARACTERS: Steven Universe, Garnet, Amethyst, Pearl, Connie Maheswaran, Peridot, Lapis Lazuli, Bismuth, Greg Universe, Lion, Yellow Diamond, Blue Diamond, White Diamond, Jasper, Yellow Pearl, Blue Pearl, Spinel, Rutile Twins, Rhodonite, Padparadscha, Fluorite, Lars Barriga, Sadie Miller.

LOUD HOUSE

(In this world Y/n is the big brother of the Louds family. He is the same age as Lori and not as bossy as her. He loves to hang around with his family. He doesn't have a lot of friends(except Bobby) and doesn't really say much. Little did he know that he was a girl magnet.)

CHARACTERS: Lincoln Loud, Lori Loud, Leni Loud, Luna Loud, Luan Loud, Lynn Loud Jr, Lucy Loud, Lana Loud, Lola Loud, Lisa Loud, Lily Loud, Lynn Loud Sr, Rita Loud, Ronnie Anne Santiago, Bobby Santiago, Carlota Casagrande, Carl Casagrande, Carl Casagrande, Maria Santiago, Sid Chang, Clyde McBride, Stella Zhau, Sam Sharp.

MLP: HUMAN VERSION

( This world of Y/n is the boyfriend of Sunset and the friends of the girls. He is known for kindness and willingness to do anything for his friends. )

CHARACTERS: TWILIGHT SPARKLE, FLUTTERSHY, RARITY, APPLEJACK, RAINBOW DASH, PINKIE PIE, SUNSET SHIMMER, SPIKE, APPLE BLOOM, SCOOTALOO, SWEETIE BELLE, CELESTIA, PRINCESS LUNA, CANDACE, BIG MACINTOSH, SHINING ARMOR, MAUD PIE, LIMESTONE PIE, MARBLE PIE, ADAGIO DAZZLE,  SONATA DUSK, ARIA BLAZE, FLASH SENTRY, TRIXIE LULAMOON, VINYL SCRATCH, WALLFLOWER BLUSH.