Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. W''s (W'' W''s~Doubles~?) is a Japanese manga series written and illustrated by K ji Seo. It first premiered in Gekkan Shounen Magazine. The individual chapters are collected and published in 3 tank bon volumes by K dansha.In Japan people of all ages read manga. The genre includes a broad range of subjects: action-adventure, romance, sports and games, historical drama, comedy, science fiction and fantasy, mystery, horror, sexuality, and business/commerce, among others.