Short-Term Focused Cover Page Serials (短期集中表紙連載,Tanki Shūchū Hyōshi Rensai?), usually shorted to Cover Stories or Cover Arcs, are a series of supplemental stories told through the cover pages of select chapters. With few exceptions, they focus on the activities of various antagonists and side-characters after their initial encounters with the Straw Hat Pirates.
Cover arcs follow a simpler, more decompressed format than the manga storyline proper; their pages are never subdivided into panels, and most of their dialogue and narration runs in a numbered page-bottom caption (their few dialogue balloons usually featuring pictograms instead of words). However, they are equally Canonical, many having introduced or explained elements pivotal to the main storyline – e.g.Vice-Admiral Garp.