Following the first designer Kazuie Ariga, Sasaki has served as its cover designer since its January 1986 issue (the 93rd issue).
The magazine, whose target readera are elementary school-aged boys, was established in 1977.
The Japanese edition of “Guinness World Record 2021,” in which Sasaki’s record is included, is published by KADOKAWA ASCII Research Institute today on November 18.