Let's be real. If this happened, the world would probably lose its mind for a bit. But then, it would be all about securing the site, analyzing the structure, and figuring out how it affects Earth. Governments would probably keep most info classified, and we'd be left in the dark.
Sounds like a fever dream pitched during a wild night out in Hollywood. There's no trace of anything like 'Sushi in Time,' starring Leo or directed by Tarantino. Maybe in an alternate universe, buddy.