Greetings to all our readers. I hope that all of you will enjoy this work. This book is the union work of me and my friend,Tomo. We will try to present our best to you all.

Since we both are not Korean, there can be some mistakes. So we hope you can bear with us and we'll wholeheartedly accept your opinions. And we also assure you that we'll complete this book unlike the previous one.

Also, this book will be updated 2-3 times per month. And if under any circumstance, it is not updated, we'll let you know in advance.

Enjoy your reading..