Thank you for taking the time to explain itThe daily view trends are pretty similar to the other videos until about March when it moves upward and continues to spike significantly a couple of times later. The other videos get some smaller spikes around April as well, so there's a good chance that whatever drove people to Mori's video probably contributed to the other girls' videos getting additional views from being at the top of the suggested list. That would explain why the difference in views is also so high even between the other girls, with non-fans just checking out the first few suggested videos in the list before moving on.
Probably hit a high-traffic social website somewhere for the first climb, then reposted to others while it was still somewhat viral for the resulting spikes. If the resulting views from social media pushed that video in particular to one of the featured sections of the 360 video page while youtube was doing more to promote that page, that could also account for the separate smaller spikes. With that thumbnail, I have to imagine there would be a lot of curious views.
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Here is tonights The Girls Live where our girls take on the Muscle Monster.
While we are worried about H!P girls getting injured during concert reharsals, UUG goes through a series of "monkey bars" 10 stories up in the air
Update: Just as I expected. Sekki just could not do this physical activites successfully
Muscle Monster site: http://www.sagamiko-.../musclemonster/