in context of manga galleries
https://ehwiki.org/wiki/Talk:multi-work_series
“book chapters (anthology, tankoubon, goudoushi, soushuuhen) and unofficial collections do not qualify
. . . or gutted/ripped chapters from a tankoubon.” < the implication is that digital
Say a translated version from magazine, then a tankoubon containing it get released it would be invalid
“. . . invalidates the tag, that includes uploading single chapters from a tankoubon or anthology (thisgallery).”
What the hell does that even mean why even bother

For doujinshi
“A complete work whose story spans across multiple. . . “
Udon-ya’s story show no sign of finished. If a series is stil published it is not complete,beware of asshole who would tell to downvote it in forum because it is correct request per definition
Yeah this tag sucks. Even digital can’t be tagged even though it is in same series. What kind of shitty sites using counter intuitive tag constraints

Base +2