I agree with ksandness. The local senpai (more senior students) will be all too eager to show your brother the best yakitori, and students on a budget generally know where the best value for money can be had, too.
ETA: Also, the site you linked to is a chain. There will be MANY of these (and stuff very like this) at every station. Saitama isn't Aomori (and even in Aomori they have fantastic food near stations).