It is said to be a combination of a New Year soup called 'seung chat gang' containing seven ingredients and 'chat choi yu sang' from Shunde District and Nanhai District area in Guangdong Province, consisting of sashimi such as grass carp or salmon topped with finely chopped ginger, daikon and citrus fruit skin, peanuts or flakes made from deep-fried wheat flour and served with a sweet-and-sour seasoning.
七草粥ならぬ、「上七羹」（ションチャッカーン）という7種の材料を加える正月のスープと、広東省南海、順徳周辺の「七彩魚生」が合わさったものとも言われる料理で、ソウギョやサケなどの刺身の上に、ショウガ、ダイコン、柑橘類の皮などの細切りや落花生、小麦粉を揚げて作るフレークを乗せ、甘酸っぱい調味料を加える。