how to say domain expansion infinite void in japanese

The Japanese phrase for “Domain Expansion: Infinite Void” is usually 領域展開 無量空処 , read ryōiki tenkai: muryōkūsho.

Breakdown

• 領域展開 = Domain Expansion, read ryōiki tenkai.

• 無量空処 = Infinite Void, read muryōkūsho.

Common way to say it

If you want the full anime-style line, say:

領域展開、無量空処
Ryōiki tenkai, muryōkūsho.

Pronunciation help

A simple English approximation is:

• ryo-ee-kee ten-kai
• moo-ryo-koo-sho.

TL;DR: 領域展開 無量空処（ryōiki tenkai: muryōkūsho）.