Kana
えびでたいをつる
Meaning
to gain a big return with a small investment
Japanese Example
小さな親切が大きな契約につながり、海老で鯛を釣る結果になった。
Translation
A small kindness led to a big contract, giving a large return for little effort.
海老で鯛を釣る (えびでたいをつる) means to gain a big return with a small investment.