I visited in July.Kagurazaka Ishikawa is known as a difficult-to-book restaurant, and I was finally able to fulfill my long-held wish to dine here.This time, I enjoyed my meal in a private room, which had a calm and traditional Japanese decor, creating a comfortable atmosphere where I could savor the dishes without worrying about my surroundings. The quiet and refined ambiance allowed me to focus entirely on the meal.What particularly impressed me that day was the sashimi and the comparison tasting of red sea urchin and Hokkaido purple sea urchin.The sashimi was not only fresh but also showcased meticulous knife work and temperature control, allowing me to fully appreciate the natural flavors of each piece.The red sea urchin and Hokkaido purple sea urchin were especially memorable. The red sea urchin had a rich sweetness and deep umami, while the purple sea urchin offered a refined and delicate sweetness without any off-flavors. I was amazed at how distinct the flavors could be even among the same type of sea urchin, making it a luxurious experience that could only be enjoyed through comparison.Each dish reflected the Japanese culinary philosophy of "bringing out the best in the ingredients." There was no unnecessary embellishment; each ingredient's charm was maximized, and I could feel the careful craftsmanship in every plate. Rather than relying on flashy presentation, the depth of Japanese cuisine became more apparent as I continued to eat.The Japanese sake served with the meal was also excellent, featuring Nabeshima, Jikon, and Aramasa, each enjoyed in its prime condition. Each sake harmonized beautifully with the dishes, creating an unforgettable experience for sake lovers.The service was exceptionally pleasant, combining proper service with a natural friendliness that allowed me to relax throughout my visit. The attention to detail was remarkable, making me feel that the entire restaurant was dedicated to creating a special experience, not just the food.The harmony of the cuisine, atmosphere, and service was at a high level, and I understood why it is so difficult to secure a reservation.If given the chance, I would love to return.