Wow... You just gotta do /everything/ yourself. xD
I bought the live stream ticket to the DEMO show, and both on the page and confirmation email, it listed a starting time in germany - so I took that, put it into my mind and calender, and went with it.
Turns out it was a whole hour off - and the show itself, is but one hour long! My time difference to japan is 8 hours, the start time in their local time was 18:50 ... but the time listed for germany was 11:50.
Do you see the mistake? 18 - 8 = 10; 10 != 11! So, by the time I went to open the stream (11:50 my time, as per the schedule given in the E-Mail) (and having just crawled out of my bed), the show was almost over XD aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-
Now I have to wait for another email for the VOD. But I am actually a little pissed, so I will straight up feed that into yt-dlp >_>
Oh and I paid 19 € for the ticket. Not a lot by any means, but I did pay so...