Except for her red hair, Yoko Nakajima is a typical, obedient Japanese high-school student. Her life is fairly ordinary—that is, until Keiki, a unicorn in the guise of a young blond-haired boy, tells her that she is his master and must return to their kingdom. When the boy mysteriously vanishes, Yoko is left alone, confused, and wandering through a foreign land with nothing to help protect her save a magic sword and a magic stone. When Keiki suddenly appears at Yoko’s school, little does she realize that her life is about to change. Lost in a strange land--without a map—and demons on her trail, Yoko begins her quest for both survival and self-discovery.
The Twelve Kingdoms is currently publishing . It is also Known as: 十二国記, Juuni Kokuki
Genres: Fantasy
Top 8 Manga Like Juuni Kokuki [2022 List]
8. Honzuki no Gekokujou: Shisho ni Naru Tame ni wa Shudan wo Erandeiraremasen

Motosu Urano, a book-loving college student who just got her Librarian certification and was supposed to enter the job of her dreams after graduation, was killed during a massive earthquake crushing her underneath a pile of her own massive collection of books.
Wishing for reincarnation in order to read even more, she got reincarnated to a world with a low literacy level and very few books, limited only to the nobility of the world. As she reincarnated as 5-year-old daughter of a lowly soldier, Maine, no matter how much she wants to read, there is no way there are any books around. If there are no books then what do you do? You make them yourself of course... What her goal is, to become a librarian no matter what, and to live a life surrounded by books. For starters she begins from making them.
Ascendance of a Bookworm is finished and has 33 Volumes and null Chapters. It is also Known as: 本好きの下剋上 ~司書になるためには手段を選んでいられません~, Honzuki no Gekokujou: Shisho ni Naru Tame ni wa Shudan wo Erandeiraremasen
7. Moribito Series

From Wikipedia:
The Guardian series is a ten volume series of Japanese fantasy novels, written by Nahoko Uehashi. The first novel in the series, Guardian of the Spirit, has since been adapted into numerous media, including radio, manga and anime adaptations.
1. Seirei no Moribito : Adapted into the anime series. Balsa saves Prince Chagum of the New Yogo Empire, and is hired to protect him. He has a mysterious spirit living inside him, and his own father has sent assassins after him. Balsa has to protect him from the assassins and the dangers the spirit inside him brings. Published in English by Arthur A. Levine Books/Scholastic in the summer of 2008; translated by Cathy Hirano.
2. Yami no Moribito : Balsa returns to the country where she was born to face her tragic past. But consequences of that past, and the secret that lies buried under the mountains, make her task a difficult one. Published in English by Arthur A. Levine Books/Scholastic in Spring 2009.
3. Yume no Moribito : People start becoming trapped in their dreams. Tanda's niece, Chagum, and the First Empress are all dreaming of a flower - a flower with ties to Torogai's past. Only a man with a supernatural singing voice can save them. English publication TBA.
4. Kokuu no Tabibito : Chagum, who is now the crown prince of the New Yogo Empire, and Shuga are sent bearing greetings to a southern country, Sangal, for the new king's crowning ceremony. However, a black shadow is reaching towards Sangal. During his stay, the King-to-be of Sangal is fatally wounded. English Publication TBA.
5. Kami no Moribito - Raihou-hen : See below. English TBA.
6: Kami no Moribito - Kikan-hen : When Balsa is in Lota, she meets two children, brother and sister, who are being sold away by a slave merchant. Balsa witnesses the girl killing the slave merchants when she became angry. But Asla herself does not believe that she did the killing. "God did it" she says, and will continue to seek "God's" help if people threaten her. Because of Asla's ability, the two are in grave danger. Shamans closely connected to the King himself see them as a threat towards Lota, and will either kill or use them as their weapon when there is a chance. Balsa and Tanda decide to act for the two. English TBA.
7. Souro no Tabibito : English TBA.
8. Ten to Chi no Moribito - Lota Oukoku-hen : English TBA.
9. Ten to Chi no Moribito - Kanbal Oukoku-hen : English TBA.
10. Ten to Chi no Moribito - Shin Yogo Oukoku-hen : English TBA
The Guardian of the Spirit is finished and has 10 Volumes and null Chapters. It is also Known as: 守り人シリーズ, Seirei no Moribito, The Guardian of the Spirit, The Guardian Series
6. Gin no Valkyries

Ruka always dreamt of a silver knight calling her name while she's sleeping. And she never had boyfriend for all 17 years of her life because of her shyness. One day, there's a rumor about a stone that could make its owner having a sweet dream while sleeping. Followed by a strange event, Ruka tried the stone, and brought to the dream. But, what she found in her dream wasn't something that she's expected. And she woke up neither in her bed nor in her world. But in a world where Valkyries rule...
Gin no Valkyries is finished and has 10 Volumes and null Chapters. It is also Known as: 銀のヴァルキュリアス, Silver Valkyries
5. Akatsuki no Yona

Princess Yona lives an ideal life as the only princess of her kingdom. Doted on by her father, the king, and protected by her faithful guard Hak, she cherishes the time spent with the man she loves, Su-won. But everything changes on her 16th birthday when tragedy strikes her family!
Yona of the Dawn is currently publishing . It is also Known as: 暁のヨナ, Yona: The Girl Standing in the Blush of Dawn
4. Kusuriya no Hitorigoto

In the East is a land ruled by an emperor, whose consorts and serving women live in a sprawling complex known as the hougong, the rear palace. Maomao, an unassuming girl raised in an unassuming town by her apothecary father, never imagined the rear palace would have anything to do with her—until she was kidnapped and sold into service there.Though she looks ordinary, Maomao has a quick wit, a sharp mind, and an extensive knowledge of medicine. That's her secret, until she encounters a resident of the palace at least as perceptive as she is: the head eunuch, Jinshi. He sees through Maomao's façade and makes her a lady-in-waiting to none other than the Emperor's favorite consort... so she can taste the lady's food for poison!
The Apothecary Diaries is currently publishing . It is also Known as: 薬屋のひとりごと, The Pharmacist's Monologue
3. Kanata kara

On her way home from school one day, Noriko is unexpectedly plunged into a strange and extraordinary fantasy world. Her troubles compound exponentially when she is rescued and befriended by a handsome young man by the name of Izark. He may be brave and courageous, but inside Izark lurks the darkest evil imaginable. And according to an ancient prophecy, Noriko possesses the power to unleash that evil. Now, inexorably bound together, these two unlikely allies must navigate a world both wondrous and hostile.
From Far Away is finished and has 14 Volumes and 56 Chapters. It is also Known as: 彼方から, From the Other Side
2. Amakusa 1637

During a school cruise trip, a group of friends are thrown back to the year 1636. According to history, in 1637 a revolt known as the Shimabara Revolt broke. It was a rebellion by Christian rebels and led by a charismatic youth known as Amakusa Shirou, which ended in the defeat of the rebels and resulted in the loss of 3,000 lives. Hayumi Natsuki, our heroine, is mistaken as Amakusa Shirou by the villagers she met, never mind that the real Amakusa Shirou is male. Apparently the real Amakusa Shirou died the year previously, before gaining recognition or popularity as a leader among the people. Before long, she became famous as some-sort of heaven-sent angel and people started calling her "Shirou", believing she is the saviour prophesied 25 years before.
Amakusa 1637 is finished and has 12 Volumes and 57 Chapters. It is also Known as: AMAKUSA1637, Summer Moon
1. Song of the Long March

Chang An in the Tang Dynasty of China : The demon star is passing through the sky, calamity is about to befall the Tang Dynasty—because of a woman. Skilled in martial arts and war tactics, Princess Chang Ge Li sets out to avenge her family and take back the throne.
Song of the Long March is finished and has 11 Volumes and 61 Chapters. It is also Known as: 長歌行, Choukakou, Chang Ge Xing