it's really easy most of the time. either reverse search to find gookdate or check https://www.reddit.com/r/kpopfap/search?q=[idol name here]&restrict_sr=on&include_over_18=on&sort=relevance&t=all
because the extended version is supposed to be only for VIP viewers (which people pay for). We will also be subbing the behind-the-scenes videos but only those that are not marked as VIP
Where to download VIP c101 videos? I want some extra Mei Qi scene cuts.