Was posted before but this time we have video.
These folks were the first ones in meaning that they lined up all night - and some got squashed for their efforts and lead away to be attended to. I bet that some of them were more miffed that they didn't get their limited editions rather than their bruises.
Original text from animes below.There was an accident, some of my friends went there and a lot of ambulances went inside wonder fest, it seems like there was an accident with the electric escalator at 10 am, they let too much people to use the escalator and then suddenly stopped and 10 persons got injured.
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Via : AnimeNarutard