It has been revealed that the total number of copies of the study guide series " Chiikawa Drill" (Kodansha), based on Nagano's popular manga " Chiikawa ", has exceeded 480,000. To commemorate the success, a bookstore fair will be held from early July. For every book purchased from the 12 eligible drills, a special desk pad will be given away.
The special desk pad features a design on the Chiikawa and Hachiware studying for the weeding exam, while the back features silhouettes of Chiikawa and his friends.
The "Chiikawa Drill" series is based on the concept of "drills that anyone can complete in just 10 minutes." There are a calculation series, a Japanese language series, a kanji series, and a master series.
