Where can i find this movie?

Electromog

Akiba Citizen
Dec 7, 2009
4,034
2,420
As far as I can tell the DVD doesn't come out until July 2nd, which might explain why you can't find it online.
 

Electromog

Akiba Citizen
Dec 7, 2009
4,034
2,420
That's the cinema release date, I guess. I found several sites listing the DVD and they all claimed a release date of July 2nd 2019.
Check the Japanese Amazon for instance (link is to the English version of the page.)