Haeseongwon is a Chinese restaurant in Mullae-dong, Yeongdeungpo, Seoul. It serves samseon jjamppong, haemul ganjjajang, tangsuyuk, japtang bap, and mapo dubu. The jjamppong and jjajang noodles come in portions about 1.2 times larger than at typical Chinese restaurants, and the tangsuyuk is nutty. The samseon jjamppong's broth is lacking and the seafood is hard to see.