In a modern world where mountains transform into human settlements and the darkness of the night is dispelled, yokai boldly appear in the streets during the daytime! They mean no harm, but how can we humans coexist with these well-meaning yet troublesome beings?

A certain winter day. Hajime Mutsuki, the leader of the idol unit "Six Gravity," (a.k.a. Gravi) associated with Tsukino Talent Productions, aimlessly dropped by a secondhand bookstore and encountered Shun Shimotsuki, the leader of their sibling unit "Procellarum" (a.k.a. Procella). The two of them picked up the antique classic which was thought to be the original work of the stageplay they would be starring in: "Rabbits Kingdom." Though it should have been his first time hearing the title, a strange bothersome sensation befell him, almost as if it were stuck in the back of his head. To the perplexed Hajime, Shun gently smiled. "...Ah, this one. It's quite a nostalgic and beloved... story of us from another world." This is a "what if" story of a kingdom in some other world. (Source: Hakusensha, translated)

The main character, Miyako, was enjoying the non-attendance life of an otaku. The high school where he was supposed to go to again was the stage of a Battle Royale by girls aiming to be "Princess"! Harem Academy "Otahime" Battle begins! (Source: Amazon, translated)

Born as the second prince of the Kingdom of Zain, Raidor became the owner of Dahinslave, the "cursed holy sword," one of the twelve holy swords said to exist on earth. However, his older brother, Prince Granard, fears him as a rival to the throne, and banishes him to a remote region. After living a life of poverty and hardship while fighting demons, Raidor is called back to the capital. Granard needs his help to protect the kingdom from invasion. Raidor, angered and disgusted by his brother's order, ostensibly obeys, but secretly decides to rebel! The holder of the other holy swords and the betrayal of others nobles come one after another. Will Raidor be able to take his revenge by overcoming all the challenges ahead? (Source: Ichijinsha, translated)

This version focuses more on the relationship between the Maeda siblings.

The main character Tsubame, who has never had good friends, is determined to make friends in high school, but it does not go well. In the midst of her disappointment, she is recruited by the mountaineering club and suddenly finds herself participating in a mountain climbing trip. This is a girls' mountain life comedy set in the northern land!

A spin-off of Shima Kousaku, where the main character is a knight in another world.

Osomatsu-kun tribute manga by Masayuki Izumi portraying sextuplets as young adults.

After 30 years of service as a hero in the kingdom, Alec was relieved of his duties, and he was at a loss. He was suddenly thrown out into the world without any common sense for normal living. He wondered what he should do, and came up with a plan: "That's right! Let's get a slave with the common sense that I don't have!" And that's how he met the simple but beautiful Sister Lilithia. Having found the kind-hearted Lilithia and learning to love her, Alec decides to live happily ever after as a common adventurer for her sake. Meanwhile, a new team of heroes was formed in the kingdom that banished Alec, but they are unable to defeat even the simplest of targets, and the kingdom is in turmoil. This is an adventure story about a former hero who was banished, and the love and new life he learned after becoming free! (Source: SB Creative, translated)

At the mysterious dormitory "Tomokins" run by Tomoko and her daughter Kinko lives the scientists Shinichiro Tomonaga, Tomitaro Makino, Ukichiro Nakaya, and Hideki Yukawa. Tomoko introduces us to these scientists' many theories about the seen and unseen world through her encounters with them and excerpts from their respective writings.