I kept thinking about a fish ( soup )?, I used to get at a Japanese restaurant in California.
I've never seen anything like it since, so I just winged it and made my own.
cream base (half & half), Snapper, Atlantic Cod, Shrimp, Lump Crab, Scallops, and small oysters, with scallions and Cajun seasoning.
OMG !!!! very good !!