Hmm...
It starts with a foretelling of an evil Rider that will bring about a bad end in the future, cut to present to see a soon-to-be hero that is mostly useless, and we end with said hero getting his powers even though they are mostly useless right now.
...Nope! Don't see any similarities to anything what so ever.
But in all seriousness, this episode is kind of a mixed bag for me...
I won't say it's negative, but an otherwise intriguing episode is lessed by Sougo himself. Why does he want to be a king? Where did he get the grand idea of making that his path in life? I really hope this show will apply some logic in the following episodes and give us some explanation other than "just cause, lol."
Tsukuyomi also needs a bit more development. It'd be one thing if she was about to kill Sougo but found some kind of hopeful potential in him at the last second, but no. She decides to give him a chance from the get-go. And why? Shouldn't she be just as angry as Geiz? Shouldn't she be in a hurry to fix the future as well? They've both seen how bad it can get.
However, unlike other shows I've seen recently, I feel like I get the gist of the show from just one episode. I don't NEED to see the next episode, or a few after that, unless we get those character developments I was talking about. Zi-O will go around saving people who have become evil monster-versions of old Riders, Tsukuyomi will keep giving him a chance and try to help him along the heroic path, Geiz will reluctantly fight beside him but will also keep an eye out in case Zi-O turns evil after all, insert some time traveling to meet previous Riders and gain power ups, and that will be the status quo for a while.
Also, since someone asked me in an unrelated topic, I think the CGI was perfectly fine. It's as good as a low budget show could possible give us.