Steven C.
Google
This was a very interesting and great experience.
In this place it is all local and the fishes are really fresh. You buy tickets up front in the vending machine first (it comes in 500, 300, 100 tickets), and you write the sushi you want on the right ticket with the price on the wall.
For example, if it is Uni (600), you take the 100 + 500 ticket and write your name and Uni on the tickets.
The locals are super friendly unlike other tourists spots and the atmosphere is great. I would come back!