This tag indicates the content is "Raw," meaning it is in the original Japanese language without fan-made or official English translations. "Sin" likely refers to the specific individual or group that provided the raw scan.
Volume 4 focuses on the strengthening bond between the protagonists, and the kind-hearted mononoke Kusanagi , as they face the traitorous mononoke Dosan. The narrative in this volume covers an important gathering of samurai where they learn of an impending massive mononoke attack on their headquarters. Doron Dororon - Tomo 04 (#26-#31) [Sin Raw].cbr
This is a Comic Book Archive file, commonly used for digital comics and manga. It is essentially a renamed RAR archive containing image files (like JPEG or PNG) of the manga pages. This tag indicates the content is "Raw," meaning