Ascendance of a Bookworm Part 2 Novel Volume 4 is written by Miya Kazuki and features art by You Shiina.

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.