They beat the shit out you two when you probably looked like tourist and were more than likely speaking broken Japanese? That sucks that they would take that situation to an unnecessary level like that.

he probably said "sugoi baka"

Ugh. Sorry Op. At least now, (hopefully), your brother doesn't say those anymore, unless he is actually speaking sentences in Japanese. I hate it when people say those without actually speaking, it's really annoying.

The Japanese are typically peaceful people. I wonder what he said...

Jesus I like anime and all but I at least have the sense to look up real life Japanese etiquette before I actually go there so that shit likt this doesn't happen. FYL OP.

Gomenasai to hear that. Must've been a very kowai experience.

being able to ask "do you speak (insert your language)?" is always useful when in a country where your language isn't the default.

sogaiwaii

To be fair, they do say "すごい" an awful lot. However, your brother is a certified tool.

I call bullshit