User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-4319079-20111220060024/@comment-3426677-20111220163103

Guran IS the last Grank monster at G3. Don't see why it's so hard to believe that. You unlock more quests after upping your HR, like rare narga at HR40, but Guren is the actual last boss.