Princess Ruruna is stressed out. With the king and queen away, she has to manage the Kingdom of Kod's humongous fruit-selling empire. Overseas departments, scads of inventory, conflicting prices, and so many customers! It's all such a confusing mess. But a mysterious book and a helpful fairy promise to solve her organizational problems—with the practical magic of databases. (Source: No Starch Press)

Manga de Wakaru Database was published in English as The Manga Guide to Databases by No Starch Press on January 15, 2009, in Polish by PWN on November 25, 2017, in Italian by GEDI Gruppo Editoriale on May 25, 2018, and in French by Éditions H&K on September 11, 2018.