Wealth
Give some shellfish to a talented person and they'll have no problem accumulating wealth. People with talent can make money out of pretty much anything, so shellfish are like easy-mode.
Picture the talented person huddled over a pile of shellfish, whispering to them about the wealth they'll soon be turned into.
さい, ざい
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This talented person really starts accumulating wealth when their cyborg (さい) is unveiled. It's a half-man, half-shellfish cyborg that plays the xylophone , and everyone wants to buy it.
You'd be wealthy too if you sold that cyborg you made. It may not have any shellfish in it and it can't play the xylophone, but you could change that…