蛍雪の功 けいせつのこう noun (common) (futsuumeishi) 蛍雪の功けいせつのこう Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi) the fruit of diligent study 漢字 kanji used 蛍 lightning-bug, firefly 11画 雪 snow 11画 功 achievement, merits 5画
蛍雪の功けいせつのこう Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi) the fruit of diligent study