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Japanese & Sushi Japanese Cuisine Sushi Bar Downtown

IKKAI Restaurant

Counter-style sushi precision in the heart of downtown.

★★★★☆ 4.5 · Google (218+ reviews)
$$ 📍 109 S Main St, Naperville, IL 60540
NF

NapervilleFood Editor

Local team review · February 2025

The Ikkai Regular landed on our table like a master class in restraint: eight pristine pieces of nigiri flanked by a tuna roll, each cut revealing fish so fresh the grain practically glistened under the counter lights. The sushi rice, warm and subtly seasoned, told us everything we needed to know about the kitchen's priorities. We followed with the 109 Roll, a house creation topped with torched salmon that delivered a smoky sweetness most downtown sushi spots only approximate. What separates IKKAI from the pack is its dual personality: a focused omakase experience for purists sitting alongside an all-you-can-eat option that never sacrifices quality for volume. The ramen program rounds out the menu with a rich tonkotsu that could anchor its own restaurant. Tight seating means reservations are essential, but the intimacy works in the restaurant's favor.

Insider Tip

Reservations are essential — the room is small and the omakase sells out before walk-ins arrive.

About the Restaurant

IKKAI is a Japanese sushi restaurant tucked into the heart of downtown Naperville on Main Street. The compact, warmly lit space centers around a sushi counter where chefs assemble rolls and nigiri with visible precision. The menu spans traditional sushi and sashimi, creative signature rolls, a full ramen lineup, and an omakase experience that lets the chef guide the meal.

Photos

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Hours

MondayClosed
Tuesday12:00 PM - 2:30 PM, 5:00 PM - 9:00 PM
Wednesday12:00 PM - 2:30 PM, 5:00 PM - 9:00 PM
Thursday12:00 PM - 2:30 PM, 5:00 PM - 9:00 PM
Friday12:00 PM - 2:30 PM, 5:00 PM - 10:00 PM
Saturday12:00 PM - 10:00 PM
Sunday12:00 PM - 9:00 PM
Check hours above

Details

109 S Main St, Naperville, IL 60540
Cards accepted
Downtown street parking and nearby garages

Downtown

Open in Maps →

Best For

Sushi

Date Night

Takeout

Quick Lunch

Amenities

What this restaurant offers

🍽

Dine-In

🥡

Takeout

💳

Cards accepted

🅿️

Downtown street parking and nearby garages

Menu Highlights

Signature dishes worth trying

Ikkai Regular Set · $30.00

8 pcs nigiri, tuna roll, miso soup, ginger salad

109 Roll · $16.00

Signature roll topped with baked salmon

Spicy Tuna Roll · $14.00

Fresh tuna, spicy mayo, cucumber, 8 pcs

Tonkotsu Ramen · $17.00

Rich pork bone broth, chashu, egg, noodles

Omakase Experience · $65.00

Chef's selection, multi-course sushi tasting

Chicken Teriyaki · $18.00

Grilled chicken, teriyaki glaze, steamed rice