That evening, the N4 textbook arrived at the community library. Someone must’ve donated the previous edition, because the catalog entry listed the Shin Kanzen Master N4 on the holds shelf with one available copy. Kenji reserved it, and the next morning he cycled through puddled streets to pick it up. The binding smelled faintly of coffee; a few underlines and margin notes bore witness to the book’s life. He checked the updated grammar list against the publisher’s sample PDF and Maru’s notes—small differences here and there, a clarified explanation there—but the core was the same. The library copy was legitimate, legal, and, best of all, shared.