>>56859163ECM System. Is Zankuro's interactive NSFW animation.
I think both 1 and 2 "can't" be played because it used the web program's Flash player, but since Flash has died, now the animations became "obsolete".
I think you can still play them, but you have to make the files swf first, and then the next problem is trying to make them play the animations consecutively.
I also think Zankuro release a legacy collection, but is locked behind Fantia's paywall.
