sections/torrents/browse.php

   $Artists = $GroupInfo['Artists'];
   $GroupCatalogueNumber = $GroupInfo['CatalogueNumber'];
   $GroupPages = $GroupInfo['Pages'];
+  $GroupSeries = $GroupInfo['Series']
   $GroupStudio = $GroupInfo['Studio'];
   $GroupDLsiteID = $GroupInfo['DLSiteID'];
   $GroupName = empty($GroupInfo['Name']) ? (empty($GroupInfo['NameRJ']) ? $GroupInfo['NameJP'] : $GroupInfo['NameRJ']) : $GroupInfo['Name'];
     if ($GroupYear) {
       $DisplayName .= " [$GroupYear]";
     }
+    if ($GroupSeries) {
+      $DisplayName .= " [$GroupSeries]";
+    }
     if ($GroupStudio) {
       $DisplayName .= " [$GroupStudio]";
     }
       if ($GroupYear) {
         $DisplayName .= " [$GroupYear]";
       }
+      if ($GroupSeries) {
+        $DisplayName .= " [$GroupSeries]";
+      }
       if ($GroupStudio) {
         $DisplayName .= " [$GroupStudio]";
       }

sections/torrents/details.php

   $Title .= " [$GroupYear]";
 }
 
+if ($GroupSeries) {
+  $DisplayName .= " [$GroupSeries]";
+}
+
 if ($GroupStudio) {
   $DisplayName .= " [$GroupStudio]";
 }