What if three portals from Dragon Ball, Naruto, and One Piece appear in OTL 2000 Earth?

[The Great Khan]

Let's set the scene it's January 1st, 2000, at 1:00 am, and portals to the worlds of Dragon Ball (Anime), Naruto (Anime), and One Piece (Anime) just appear. The portals would be permanent, indestructible, and can not be erased from or fade in or out of existence. The portals are circles and their size is around 2,500 square feet. There is a total of three portals connecting OTL 2000 Earth to these worlds and the portals appear on land.

The first portal would appear in OTL Shanghai (China) and in West City (original Dragon Ball during the first episode).

The next portal would appear in OTL Melbourne (Australia) and in Hidden Leaf Village (original Naruto during the first episode).

The final portal would appear in OTL Kyoto (Japan) and in Baligo (One Piece during the first episode).

How would everyone react?

(Important Note: real-world physics will be ignored for the sake of having fun)

 

[Rhymehouse]

I don't think this is the best subforum for this thread.

As for what happens, mass pandemonium followed by technological and magic exchanges. Hopefully, none of the villains make their way through the portal or life in Australasia is going to take a turn for the worst.