Authentic Japanese cuisine with a British touch. There is something for everybody at Tenkaichi. Delicious and interesting food served in a relaxed and enjoyable setting. At Tenkaichi, you are always among friends.Established in 1999, Tenkaichi is a restaurant where you can enjoy the full range of Japanese cuisine all year round. Visit our sushi bar for truly Japanese sushi experience.Japanese cuisine is famous for its ability to delight a gourmet and satisfy even the most health-conscious diner. Enjoy the delicious Japanese food in the heart of Cardiff, we open seven days a week for Lunch and Dinner.