If you're looking for anime similar to Saishin no Mahoutsukai to AI wo Shirumono (Light Novel), you might like these titles.
Arika Yumemiya must embark in another intense battle, this time after successfully thwarting an asteroid that was about to destroy Windbloom Kingdom. The victory is short-lived when a mysterious dark force and a new type of slave emerge, each more powerful and more resilient than the Meisters have ever reckoned with before. Will Arika, using the power of the Sapphire of the Azure Sky, be able to rescue her kingdom from another enemy? And will her faltering relationship with Mashiro be able to survive the dark times once more?
The film takes place in 201X, when the newly-formed "Empire of Godom" is threatening to take over the world by using mysterious technology offered to them by Reika Chan, the mysterious female president of a trading company. The protagonist of the film Sho Shishimaru is the one man who has the "mystical technology" that can stop the Empire of Godom, but after being hunted down by the Empire, he is saved by "mysterious Indians," who tell him about a prophecy about the "second coming of a savior."
Kanglim is a Ghost Messenger who's on a mission to capture a spirit when he makes a mistake and gets locked up in his own Soul Phone. Meanwhile, Little Kanglim is an elementary school 5th grader who lives with his grandfather and runs an antique shop together. Though he seems ordinary, he is gifted with extraordinary spiritual powers that allow him to see spirits. The phone ends up in his hands. Little Kanglim starts using the powers of the Soul Phone and ends up having no choice but to let Kanglim, a powerful Messenger among Ghost Messengers, out when things turn out serious. A Ghost Messenger and a human, the two travel back and forth the world of the living and the world of the dead getting involved in several happenings, when someone mysterious starts tracking them down.