%E3%83%9A%E3%83%BC%E3%82%B8%E4%B8%AD → (of pages) %E3%82%A8%E3%83%AD → エロ (Ero/Adult) %E6%BC%AB%E7%94%BB → 漫画 (Manga)
(漫画 / マンガ): General term for Japanese comics.
Technical Breakdown
Based on the encoded string provided, The string appears to be a list of tags or search terms often associated with Japanese manga hosting or indexing sites.
%E3%83%9E%E3%83%B3%E3%82%AC → (Manga - Katakana)
If you are looking to put these together into a readable format or a metadata block, it would look like this:
: Refers to original, untranslated Japanese comic scans.
: "2nd page" (2ページ目) out of "284 pages" (284ページ中).