I recommend everyone wanting to read this book to first learn hangul. This will improve the experience you will have with this book.
With the book, you can learn lots of words, which you would not learn in a normal textbook, because these words are only used in casual settings like texting or talking to friends. You also learn some swear words. I would recommend this book to anyone who is interested in the korean language and culture.
I gave it 4 stars, because there was no continuos story. But its okay. When your interests in the korean language is high, then you will have no problems to continue with the book.