I think it's Japanese.
The bit on the top looks like "2回目", which means "the second time". On the left, it looks like hiragana, either a れ or a ん. I'm guessing the former, but bad penmanship makes it difficult to say for sure. On the bottom, it looks like 有, which doesn't mean much by itself.
There is most definitely a big square missing from the middle, and without that, there's little hope of knowing what was written there.