Forgery of the Purple Logic Volume 1 is the first volume of the manga-exclusive arc Umineko no Naku Koro ni Murasaki: Forgery of the Purple Logic. It has not been published outside Japan.
Publisher's Summary
Japanese
竜騎士07原案のトリックにて「うみねこのなく頃に」が、まったく新しいミステリーとして登場。新たな手がかり「紫の発言」を集めて、証言の矛盾を打ち崩せ!
Chapters
- Main article: Umineko no Naku Koro ni Murasaki: Forgery of the Purple Logic/Plot Summary
This volume includes the first 5 (unnamed) chapters of the story.