Welcome to One Harmony
News
2025.04.01
New digital voucher for one-category guestroom upgrades for Loyal & Exclusive Members (“My Voucher”) is now provided. Sign in is required to display the digital voucher. Please click here for display.
Special Offers
Okura Nikko Hotels- Early Bird Specials
Enjoy our early bird specials and stay with us at a special rate. Perfect for your next trip!
Click here for details
Contact Us
One Harmony Office
+81-3-6402-3388
Inquiry FormF. A. Q.
9:30-17:30 JST
(Closed Saturdays, Sundays and Holidays)
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