This book was average. I understood 90% of it, so I recommend it as a level zero book. The story was funny in parts. It had some Genki character fanfiction as part of the plot. There were a few vocabulary words that I didn’t know but I was not able to figure them out from the context or the drawings.
This book was fine but if you picked another random student book it would probably be just as good. It was not challenging so this is good book if you do not want to be too intimidated by new vocab and kanji. It takes 5-10 minutes to read.