Perfect for those who want to read manga appprendre!

Student LEA Japanese English for two years, I have taken the lead in Japanese through this volume, I thought at the time, seemed very unserious. But I had been better (the famous minnano nihongo is not available at the time and too expensive).
Think again, this little book is your best friend to immerse yourself in the world of Japanese language provided to clearly identify its needs. As its name suggests, this book you learn Japanese through manga and thus serves to make you read manga as soon as possible. In doing so, some grammatical notions (like the order "-ro" a person, I mean NOBODY, uses at work in Japan or in any situation other than friendly) will be very soon since it views -Used in manga or people talking about "gangsta" in Japanese sometimes more doubtful. Ditto for teaching vocabulary. You learn very early verbs "kill, die cut, attack". Unhelpful verbs in everyday life.

So if your goal is to learn Japanese for work, you are doing it wrong. You will not find your account.
However, if your goal is to be able to read manga and video games. So I recommend this book against other formula as it is also known (even the famous minna no nihongo I find too damn bad)

So to conclude
+ Many good summary tables present the grammar points
+ Vocabulary and order of targeted lessons for manga / video games / kawai-tricks
+ Explanation VERY well presented. Each example is as follows

"Anata wa tomodachi to umi no koto ga itta arimasu ka"
"With you friend PT Sea PD went to PS Name"
Have you ever went to sea with friends?
(And it explains the phrase in Japanese literally making you understand the "logic" behind the tongue)

- Lack of exercise, and not the little book that will overcome this defect.

Final Verdict 4.5 / 5 (lack of exercise)
I recommend the small notebook "dekita" or other variants.
Avoid buying workbook of hiragana / katakana. Leaves lines are very fine.
For more body exercises, there is "neko no te" which nicely. But it may be that the grammar of "Japanese manga1" is insufficient. Finally, the best is to have 1-2 manga in Japanese and grammar countless and endless onomatopoeia and you are close. (Bcp and patience)

Good luck!