"First published in Japan in 2017 by TO Books, Tokyo"--Colophon.

Aspiring apprentice merchants Myne and Lutz have signed a contract with Benno, who has promised to sell their plant-based prototype. With his assistance, they finally have the materials and tools to start making their first batch of washi paper! And Benno wants to sell not only paper, but Myne's other inventions, such as the flower hairpins, as well. But getting involved in the world of merchants makes Myne's life more complicated than ever as she gets registered at the Merchant's Guild and catches the eye of the conniving guildmaster. The more people realize that Myne's ideas can be commodified, the more everyone wants a piece of her. Meanwhile, as Myne displays more and more of her otherworld knowledge and adult-like behavior, Lutz has grown suspicious of her real identity... What will Myne do when he demands to know who she really is? How could she ever explain that the real Myne is gone forever?

Rozemyne awakens from her two-year sleep to a world that isn’t as she remembers it. The strange sensation fills her with unease, but she has no time to rest—she is soon to be enrolled in the Royal Academy as an archduke candidate, where she will be taught how to control her mana, make magic tools, and perform the magic needed to rule as an archduke. She begins dormitory life with colorful teachers and students from other duchies, aiming to be the best big sister possible... but there is little chance things will go according to plan when there is a massive library on the premises. She charges there at once, the other archduke candidates and even the royal family disappearing from her mind entirely. She truly will do anything for books! Now begins a new chapter of this biblio-fantasy, with a school as its setting! This volume includes two original short stories, a four-panel manga drawn by You Shiina, and the results of the second popularity poll.

Despite having recently been separated from her lower city friends, Rozemyne has no time to grieve. Her first year at the Royal Academy has ended, summer approaches, and there's much for her to do. She strives to continue making books as per her promise to Lutz, but the spring feast also sees the announcement of her engagement to Wilfried—one of many political maneuvers to resist influence from the higher-ranking duchies. Rozemyne makes magic ink with Ferdinand, fills the Central District with mana during Spring Prayer, and accidentally revives an ancient ritual in Haldenzel. Other provinces continue to grow in the background while the lower city is extensively remodeled in the name of developing the duchy as a whole. Blessed be the melting of the snow! Prosperous be the duchy! This is the newest volume of this biblio-fantasy, now fantastically celebrating spring!

The long winter comes to an end and vibrant spring returns to Ehrenfest. The temple swirls busily as attempts to control Myne's future escalate and the High Bishop, fueled by hate, shrouds the city in the darkness of his nefarious plots. But Myne just wants everything to stay the same. Her little brother has been born, she's making new books thanks to her progress making ink, and she wants nothing more than to just keep spending more heart-warming time with her family and friends. The world, however, forces her to make a cruel and unbearable decision. To protect those she loves, she must begin walking a new road. Part two of this biblio-fantasy concludes in this heart-wrenching volume! There's a collection of short stories following the shocking climax, as well as two completely original short stories and a four-panel manga drawn by You Shiina.

Spring is the season when love blooms! Rozemyne's retainers are bursting with energy as they make clothes, attend their debuts, and shine in the new season. The improved printing press is finally completed in the temple workshop, and the variety of available books is steadily beginning to expand. Picture books, collections of sheet music, knight stories—all are now being sold. Their first aim is to further develop the paper-making industry in preparation for the spread of printing across the entire duchy. To this end, Rozemyne's party travels to Illgner, hoping to teach them how to make paper while also researching new materials to use. As the environment around Rozemyne slowly improves, the archduke's older sister arrives for a visit, shrouding Ehrenfest in an air of unease. Everything changes in this volume of this biblio-fantasy as nobles emotionally clash and the conclusion of Part 3 approaches! Including two newly written short stories and a four-panel manga drawn by You Shiina!

Aspiring apprentice merchants Myne and Lutz have signed a contract with Benno, who has promised to sell their plant-based prototype. With his assistance, they finally have the materials and tools to start making their first batch of washi paper! And Benno wants to sell not only paper, but Myne's other inventions, such as the flower hairpins, as well. But getting involved in the world of merchants makes Myne's life more complicated than ever as she gets registered at the Merchant's Guild and catches the eye of the conniving guildmaster. The more people realize that Myne's ideas can be commodified, the more everyone wants a piece of her. Meanwhile, as Myne displays more and more of her otherworld knowledge and adult-like behavior, Lutz has grown suspicious of her real identity... What will Myne do when he demands to know who she really is? How could she ever explain that the real Myne is gone forever?