Use that time to learn Hiragana instead.
While there are famous red books for N1, N2, N3, and N4 (Grammar, Reading, Listening, and Kanji), the publisher (3A Network) does not have a dedicated, standalone "Shin Kanzen Master N5" book in the same vein as the others. shin kanzen master n5 pdf download
If you truly want the content, here are five legitimate ways to access the material that are actually better than a sketchy PDF download. Use that time to learn Hiragana instead
Offers free online courses hosted by the Japan Foundation. and N4 (Grammar
The only "true" N5 book in this series is the volume.
However, a new question has been buzzing in the online language learning community: