If you're looking for anime similar to Isekai no Koukyuu de Koisare Aisarehime ni Narimashita (Light Novel), you might like these titles.
Enter the mysterious Dream World, where a newly-crowned royal soon learns of an insatiable evil, the yumekui, feeding upon the energy and dreams of sleeping princes who are then unable to awaken. The brave monarch must save them and their world from the dream eater!
Shunta Mogami loves the Battle Spirits game. One day he is transported by a light from a Battle Spirits card to Spirits World, the origin of all Battle Spirits. He meets a girl named Eto, who claims to have summoned him to Spirits World in order to prevent its destruction at the hands of the revived Evil God-King, who once plotted the destruction of Spirits World before being defeated and sealed away. Together with the confident, green-deck-wielding Yoku Albatrosa, who also came from another world, Shunta sets out to find the twelve God-Kings whose power originally sealed the Evil God-King.
Sei, a 20-year-old office worker, is whisked away to a whole new world. Unfortunately for Sei, the ritual that summoned her—meant to produce a “Saint” who would banish the dark magic—brought two people over instead of one. And everyone prefers the second girl over Sei?! But this is just fine by Sei, who leaves the royal palace to set up shop making potions and cosmetics with her newfound magic. Business is booming, and this might not be such a bad life, after all…as long as her supposed Sainthood doesn’t come back to haunt her.
One day, average salaryman Yamai Zenjirou has an out-of-this-world experience—literally! He's pulled from Earth and dragged to another world where magic thrives and a gorgeous, powerful queen needs a consort. Now he's being pressured to marry that very monarch and help her bear a child. Will Zenjirou accept this life of lazy, luxurious love at the cost of leaving his home behind?
With the subjugation of the Principality of Amidonia accomplished, Souma, the provisional king, begins the post-war cleanup process with his next move, Project Lorelei. It is an entertainment program that uses the Jewel Voice Broadcast. It was originally only thought that this program would amuse the people of the Kingdom, but it is being broadcast in occupied Van, too. What does Souma hope to accomplish with that...?! Then, when Souma takes some time off to rest in the capital of Amidonia, Van, with Juna and Tomoe, he encounters Jeanne Euphoria, the younger sister of the Empress of the Gran Chaos Empire. What sort of "negotiation" does the "realistic" Jeanne, who supports her idealistic sister, have in store for Souma...?!
Three months have passed since Shinku returned to Earth, and now, he’s been summoned once more to return to the magical kingdom of Flonyard. But this time, he’s bringing a friend! While Shinku reprises his role as Princess Millhiore’s protector, his friend Rebecca, spellbound by this fantastical place, is quickly recruited to be a bordering kingdom’s champion. What’s more, Shinku’s cousin, Natsumi, was also summoned to Flonyard by Biscotti’s strongest rival of all, Leonmitchelli! With more war games on the horizon and plenty of adventures in store, Shinku and his friends must do their best to help their respective ruler win the spoils!
Rebecca, Nanami, Millhiore, Yukikaze and others recount the story so far, from Shinku's return to Flonyard to Rebecca and Nanami becoming champions, to visiting training camps and beyond!