Still no “Making” movie available on the official site. However they have shared some (one large and the rest quite tiny) images from behind-the scenes.
There’s a bit of making footage from Mezamashi this morning too cr. @akiarashi0125.
「昨日までを、超えてゆけ #2 龍呼」篇
— 山﨑賢人❤︎Aki(*´꒳`*) (@akiarashi0125) May 7, 2017
If you missed them, there were some behind-the-scenes images from #1 Water God.