かいけついとぐち
Meanings
Expression
Noun
1. key to a solution; first step toward a solution; thread to unravel a mystery
Used inUsed in %
Anime6(0%)
Live action12(0%)
Visual novels45(8%)
Novels100(6%)
Non-fiction4(2%)
Web novels38(3%)
Aozora Bunko3(0%)

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Aozora Bunko
現代唯物論講話
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Aozora Bunko
現代訳論語
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Aozora Bunko
謎の四つ指
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