Set of three issues of Kodomo no Kagaku (Children's Science) magazine. * March 2021 issue * 10 years since the Great East Japan Earthquake * Attached supplement: "Paper Craft Karakuri Catfish" * April 2021 issue * The Cutting Edge of Game Creators * *KoKa Techo (handbook) supplement is not included.* * May 2021 issue * The Possibilities of Soil * Attached supplement: "Arithmetic Puzzle Logic Tiles" These magazines have been read once and stored, so they are in good condition. There are some minor corner folds from storage. Keywords: Science, Mathematics, Kodomo no Kagaku, Seibundo Shinkosha, After-School Detective: Dangerous Creatures, Mr. Beaker, Sakuna: Of Rice and Ruin