[Machine Translation] This book is a compilation of must-have items for cosplay costumes from the sold-out "COS Costumes You Can Make Immediately", "COS Costumes You Can Make Beautifully", and "COS Costumes You Can Make in Various Ways". It contains 28 easy-to-use basic items and 4 general-purpose breast pockets as arrangement parts. In addition, for cosplayers who are new to sewing, the book introduces the basics of sewing, how to use secondary materials, and how to make the dress, jacket, and pants with detailed photos. Includes three large sheets of actual paper. Women's sizes S~LL.