I have to mention Ajishin, my favorite Japanese restaurant although it is located in Novi.
Ajishin calls itself Sushi & Noodle. So they don't have a long list of menu choices like most other Japanese restaurants that also make up something to cater to the local eaters. But for every item on the menu, they make it in an authentic way. Other than sushi and noodle, they also have curry rice, grilled fish(Cod, Salmon, Yellow Tail), chirashi etc. You can also special order sashimi too. It is not a fancy restaurant, more a casual place, like the sushi places you see in your neighborhood in Tokyo.
Address: 42270 Grand River Ave, Novi, MI 48375