You’ll likely be saying “oishii” (Japanese for “delicious”) after one bite of the fresh, flavorful sushi from this Chestnut Hill hot spot. The restaurant may have barely a dozen seats, but the long waits for a table here are quickly forgotten when the food arrives. The care and attention given to each piece of handcut, glistening, ruby-red tuna belly or light-as-a-feather crunchy tempura is meticulous. Besides, it’s all available (and just as good) to go. Not counting combination plates, soups, or teriyakis, there are more than 50 options on the menu, including everything from California rolls to “alligator maki.” While there’s no real alligator inside, the roll is a delicious adventure in eel, fish eggs, crispy shrimp, and avocado.