The venerable RIHGA Royal Hotel Osaka, which has a history of 90 years since its founding and has been loved by many guests, including state guests and the Imperial family, as the "Guest House of Osaka," has introduced the "Vignette Collection," one of the brands of IHG Hotels & Resorts, and has made its grand opening as the "RIHGA Royal Hotel Osaka Vignette Collection" in preparation for the opening of the Osaka-Kansai Expo in April 2025. The hotel has been renovated into a space that will be loved for generations to come, inheriting the hotel's history and identity and incorporating the charm of the beautiful surrounding scenery unique to the city of water. In this renovation, we were responsible for concept design of the entrance, reception, public areas, guest rooms, banquet halls, and gym, as well as working drawings and construction of the guest room area, art, and FF&E.