Top Countries with the Longest Total Duration for Heartless & Dreadful : Return by 72 Hours from Review Channels

This list represents countries of YouTube review channels based on the longest total video duration across all videos for Heartless & Dreadful : Return by 72 Hours. This only includes channels that have created review videos. A channel associated with a country will have its numbers added to their country's total. Numbers are retrieved via the YouTube API and updated daily.