Chai797 Cheonggyecheon is a Chinese restaurant and dim sum spot in the basement of Center One in Seoul. Its namja jjajang comes with a generous amount of meat, and tangsuyuk and haemul jjamppong are listed among its signature dishes. The dining room has high ceilings and separate rooms set apart from neighbouring ones, used for course meals and sanggyeonrye gatherings. Indoor lighting is dim in places.