"This is perhaps one of the most authentic Japanese restaurants in Chicago, and apparently, it's one of the oldest. Ambience: in the dining area, it looks like a renovated diner while the sushi bar is much more Japanese-like. It is quiet when do one is there, but at crowded times, it's very loud! Service: very prompt service, but be aware that 50 pieces of sushi is a lot and will take longer, especially when there's a full house! Food: OMG the tantan ramen is probably the best ramen I've ever had in Chicago (even better than Cocoro's ramens, which rank really high on my list . Plus, it's rare to see this ramen on the menu in Chicago so give it a try! The sushi is also very fresh and traditional :"