Novel_Lover459
Here is a huge list from which you can take inspiration ---You could use these manga, anime, manhwa worlds: Mercenary Enrollment, Black Lagoon, Jormungand, Hellsing, Boss In School, God Of Blackfield, The God of High School, Noblesse, Viral Hit, Lookism, Tenjou Tenge, ikkitousen, to love ru , Rosario + Vampire, Sister's Testament New Devil, DxD, Kaze no Stigma, The Fruit of Grisaia, Full Metal Panic!, Seikon no Qwaser, The Breaker manhwa, Veritas manhwa, Girls of the Wild's, Code:Breaker, Medaka Box, Ao no Exorcist, Jormungand, Darker than Black, The Gamer, Bleach, JoJo's Bizarre Adventure, My Kingdom (Silent War), Stepmother's friend (manhwa), Sekirei, YuYu Hakusho, Air Gear, Kaichou wa Maid-sama!, Champion, Castlevania, fairy tale, TBATE, One piece, tensura, overlord, Vinland Saga, solo leveling, Seven deadly sins, overlord, hellsing, naruto, one punch man, dragon ball, Tokyo Ghoul, type moon, Triage X, Violet Evergarden, Elfen Lied, Trinity Seven, Maken-Ki!, Date A Live, Death March kara Hajimaru Isekai Kyousoukyoku, How Not to Summon a Demon Lord, Rakudai Kishi no Cavalry, To Aru Majutsu no Index, Chrome Shell Regios, Gakusen Toshi Asterisk, Hagure Yūsha no Esutetika , Strike the Blood, Seirei Tsukai no Blade Dance, Seiken Tsukai no World Break, Kenja no Mago, Kuusen Madoushi Kouhosei no Kyoukan, Maou Gakuin no Futekigousha, infinite Stratos, Hybrid X Heart Magias Academy Ataraxia, Kore wa zombie desu ka?, Omamori Himari , Mayo Chiki!, Freezing, Negima, Blood Lad, Dakara Boku wa, H ga Dekinai, Versatile Mage, Heroic Age(anime), Toriko, Claymore, Karate Shoukoushi Kohinata Minoru, madan no ou to vanadis, Neon Genesis Evangelion, Cowboy Bebop, D.Gray-man, Tenchi muyō!, Isekai no seikishi monogatari, Densetsu no Yuusha no Densetsu, Nejimaki Seirei Senki, Maoyu ~ Archenemy & Hero, magi the labyrinth of magic, Grancrest Senki, Shaman King, Rick and Morty, Fullmetal Alchemist , Arcane, kuroinu, Zero no tsukaima, High School of the Dead, Arifureta, kengan, Ranma ½, Maji De Watashi Ni Koi Shinasai!, Kenichi: The Mightiest Disciple, Nisekoi, tokyo revengers, Renai Bōkun, Beelzebub, Gate - Thus the JSDF Fought There! ---While these worlds are films, TV series, games, books: The Originals, 300, The Last Kingdom, The Centurion, The Eagle, The Barbarians, Britannia, Alexander, The Immortals, The Clash of the Titans film saga, Hercules 2014, Atlantis: The Lost Empire, The Blood of Zeus, Tomb Raider, Romulus, Knightfall, Black Sails, A Knight's Tale, Kingdom of Heaven, TV Series The Doctors, vikings, Troy, the blacklist, Peaky Blinders, Spartacus, Gladiator, mission impossible, Underworld, Terminator, Pirates of the Caribbean, Outlander, The Tudors , The Gods of Egypt, The Scorpion King, Clash of the Titans, The Last Witch Hunter, Percy Jackson, Devil May Cry, Ghost Of Tsushima, Metal Gear, Napoleon, Alexander film, Kingdom Come: Deliverance, Red Dead Redemption, Crusader Kings , Roman Empire television series, Marco Polo, Van Helsing 2004, The Mummy, Dracula Untold, Prince of Persia: The Sands of Time 2010, Far Cry Primal, Far Cry, Uncharted games, total war games, 10,000 BC movie Other worlds you could insert with portals: The Witcher, Forbidden West Horizon, Final Fantasy, The Lord of the Rings, tales of demons and gods, Overlord game, Marvel, DC, star wars, star trek, Mass Effect, the elder scrolls, halo, warhammer 40k , soul land, battle through the heavens, Assassin's Creed, Shadowhunters, Fallout, Foundation, Cyberpunk 2077, Warcraft, Runeterra(LOL), Bannerlord, Warhammer Fantasy, Elden Ring, ATG, Shadows and Bones, Warlock in a magus world, Dragon Age , The Inheritance Cycle, The Forgotten Realms(DnD), StarCraft, Marvel, DC, Narnia, ben 10, The Last of Us, The Boys, Invincible, breaking bad, Supernatural, Watchmen,The Dark Knight trilogy, Terminator, Pirates of the Caribbean, Dune, Underworld, The Hunger Games, Bourne, Harry Potter.
JoJo's Bizarre Adventure, Highschool of the Dead, HELLSING, AKAME GA KILL, Tokyo Ghoul, type moon, Triage X, Violet Evergarden, Elfen Lied, to love ru, Trinity Seven, The Testament of Sister New Devil, Maken-Ki!, Date A Live, Rosario + Vampire, Sekirei, Death March kara Hajimaru Isekai Kyousoukyoku, How Not to Summon a Demon Lord, Kaze no Stigma, Rakudai Kishi no Cavalry, To Aru Majutsu no Index, The Fruit of Grisaia, Chrome Shell Regios, Gakusen Toshi Asterisk, Hagure Yūsha no Esutetika, Strike the Blood, Full Metal Panic!, Seirei Tsukai no Blade Dance, Seiken Tsukai no World Break, Kenja no Mago, Kuusen Madoushi Kouhosei no Kyoukan, Maou Gakuin no Futekigousha, Seikon no Qwaser, Beelzebub, Infinite Stratos, Hybrid X Heart Magias Academy Ataraxia, Kore wa zombie desu ka?, Omamori Himari, Mayo Chiki!, Freezing, Negima
Highschool dxd and rias, akeno, keneko, kuroko, Asia, xenovia, Irina, rossweisse, ravel, grayfia, sona, tsubaki, and the rest of sona's female peerage. One piece and nami, Robin, nojiko, uta, baccarat, carina, carrot, vivi, Rebecca, viola, baby 5, lilith, boa Hancock, Hina, tashigi, Belo Betty, koala, kalifa, stussy, reiju for harem.
baki, history strongest disciple kenichi, ikkitousen, tenjou tenge, TO LOVE RU, Blood Lad, Campione!, Fairy Tail, Dakara Boku wa, H ga Dekinai, Black clover, DARLING in the FRANXX, The Breaker manhwa, The Beginning After the End, Versatile Mage, The Gamer, The God Of High School, The Great Mage Returns After 4000 Years, Eleceed, Lookism, Nano Machine, UnOrdinary, DICE manhwa, Omniscient Reader's Point Of View, Veritas manhwa, Mercenary Enrollment, God of Blackfield, Reborn!, kongou banchou, Girls of the Wild's
For the world: The witcher, Cyberpunk 2077, God of War, Warcraft, Runeterra(LOL), Warhammer 40K , Warhammer Fantasy, Total War, Bannerlord, Halo, Mass Effect, Star Wars, The Originals, Games of Thrones, The Lord of the Rings, The Inheritance Cycle, The Forgotten Realms(DnD), StarCraft, Skyrim, Marvel, DC, DxD, Narnia, Toriko, Dragon Age, Heroic Age(anime), Shadows and Bones, Warlock in a magus world, Tales of demons and gods, BTTH, ATG, the wheel of time, Percy Jackson, Elden Ring
300, the last kingdom, Centurion, The Eagle, Barbarians, Britannia, Alexander, Immortals, Clash of the Titans series, Hercules 2014, Atlantis: The Lost Empire, Blood of Zeus, Titan Quest, Lara Croft, Romulus, Knightfall, Black Sails , Vinland Saga, The Northman, King Arthur: Legend of the Sword, Kingdom of Heaven, The King, A Knight's Tale, Medici tv series, Outlaw King for the worlds that are set in the same world you could unite them, for example with those on earth: you could unite them with him who is immortal who can let's put it like this live various lives and change his name or you could make him travel through history if you put in assassin's creed like a isu etc...