Room III and Kappou Mu, a dual-concept restaurant, offer visitors the opportunity to indulge in an authentic Edomae-style omakase dining experience at a traditional sushi counter, as well as enjoy signature drinks and Japanese tapas at the contemporary gastro bar next door. The restaurant entrance, marked by a mirror boxed entrance, leads guests to a humble dining space with a 14-seater counter, inspired by traditional sushi rollers. The Kappou space, adorned with mud walls and Japanese Cedar wood, provides a coherent aesthetic and showcases the expertise of traditional Japanese culinary craftsmanship.

The site has an L-shaped layout, with the left entrance leading to the omakase restaurant and the other entrance guiding patrons to a winding hallway that leads them further into the gastro bar. A pre-drink area, designed as a small talk room, features a contemporary mix of real leaf wallpaper and a high-gloss plastered ceiling. The room also highlights Japanese shokunin culture with a bamboo pillar wall and a wavy wall accompanied by a bench, creating an intimate seating area reminiscent of a hidden treehouse.

As attention shifts to the bar, guests are greeted with a stunning and sensorial experience. The bar counter, framed by a reflective cage, becomes the centerpiece of the room. The lounge area features cozy and elegant tables illuminated by floating sphere pendant lights, creating a surreal atmosphere. Intimate two-seater tables line the sides of the room near full-length windows, enhanced by delicate Shinto shrine-inspired fixtures. Carefully timed curtains prevent light pollution in the evening, maintaining the space's serene aura.

Stepping into the inner sanctuary, guests are enveloped in opulent décor. Mirrored panels with a delicate diamond pattern adorn the wavy wall, exuding luxury and femininity. A reflective ceiling, featuring four-leaf clovers and a dazzling light fixture with flowing leaves, adds to the celebratory ambiance. The gastro bar area offers a relaxed setting with a free-flowing arrangement of tables, ribbon-shaped benches, and low tables and stools that provide both finger food plates and a picturesque view of the city skyline through full-length windows. The overall design creates a cohesive and tranquil environment, inviting patrons to experience a respite from the outside world and immerse themselves in Japanese culture.