This is Kazuhito Tadano, a pitcher for the Hokkaido Nippon-Ham Fighters of the Japanese Pacific League, uncorking what is likely the purest eephus pitch you will ever see.
Here's the full video:
My favorite part is that Tadano appears to be genuinely pissed that the pitch wasn't called a strike. You can't really blame him, though. It's hard to imagine an eephus pitch crossing the plate any more squarely than that.
You may remember Kazuhito Tadano from his time spent in the major leagues with the Cleveland Indians, and also from that one time he did gay porn.