Following on from the 15th anniversary renovation in 2013, for which we were in charge of planning and design supervision, we were involved in the 20th anniversary renovation from the planning stage. After several renovations, the hotel was opened in 2019 as a milestone project that marked the completion of the entire renovation. The welcome space on the first floor and the restaurant floor on the fifth floor were completely renovated, the signs within the building were renewed, and new digital signage was installed. The renovation was based on the concept for the 15th anniversary, "Romanticship Umihotaru," and unlike the fourth floor, which had all openings facing the sea, the image of the space was created with only inward-facing openings and special decorations.