The establishment occupies the former lake house, a building that previously served as a café and creperie. Following this transformation, the venue has become an izakaya—the Japanese equivalent of a traditional tapas bar—offering an immersive experience that blends Tokyo aesthetics with the Pyrenean landscape.

The interior design of Miyagi features wood, paper lanterns, and decorative fabrics, aiming to transport diners to the capital of Japan. Nevertheless, its location by the Puigcerdà lake maintains a strong local connection, providing views of one of the region's most famous landmarks.

The menu includes Japanese staples such as okonomiyaki, takoyaki, tempura, udon, and various skewers. The business has also increased its focus on sushi and offers vegan options, bringing Eastern traditions to both local residents and tourists.