1. saba   fish   shellfish   sardine   mackerel   Hint Half-n-half Clue   2. kani   fish   crab   sardine   shellfish   Half-n-half Clue   3. masu   fish   shark   tuna   trout   Half-n-half Clue   4. maguro   tuna   trout   shrimp   sardine   Half-n-half Clue   5. sake   salmon   crab   tuna   trout   Half-n-half Clue   6. umizarigani, rofusutaa   salmon   sardine   trout   lobster   Half-n-half Clue   7. iwashi, sadein   cod   sardine   shrimp   fish   Half-n-half Clue