Cheongjeonghae Chamchi is a tuna restaurant in Seocho-gu, Seoul, on the second floor of the Yangjae Station transfer parking lot arcade. It serves only honmaguro, and in the evening the single menu includes bluefin tuna cut into cubes and otoro sushi. The restaurant has been in operation for over 20 years, and visiting without a reservation is difficult. The evening course is in a high price range.