子で子にならぬほととぎす
こでこにならぬほととぎすkodekoninaranuhototogisu
expression
- no matter how lovingly raised, a foster child is not actually one's biological child
こでこにならぬほととぎすkodekoninaranuhototogisu
expression
Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences