Sushi and sashimi is safe in this establishment, and they do in fact have a small selection of items that are gluten free in the very back of the menu. It's always reassuring to physically see stuff marked as gluten-free in a restaurant, especially Japanese restaurants which can usually cater to people with gluten allergies but they don't always broadcast it.
— Somewhat
— Gluten-free items are marked on the main menu
— Some
— Excellent