First volume of Majo & Sady a Manhwa series written by Jung Chul Yeon, one of the most popular cartoonist from Korea. This volume contains a compilation of comic strips with this couple as main characters. Each story has 4 or 5 illustrations.
This is a suitable reading material for intermediate/high level students because all stories are written in Korean. The book has been entirely printed in color.
The author Jung Chul Yeon has blog with information about Majo & Sady that you can see through this link