D4DJ -The Prologue Of Peaky P-key-



 is a manga that features the members of Peaky P-key. It is illustrated by Mitsuki Meia and written by Ichiro Sakaki. It was exclusively serialized on the app "Manga Door" on April 23, 2021.

The story covers the formation and origin of Peaky P-key, during their first year of middle school.