透在骨子里的小气质甜在心窝里的小幸福
[tòu zài gú zi lĭ de xiăo qì zhì tián zài xīn wō lĭ de xiăo xìng fú]
A charming way to say, one carries a subtle yet elegant disposition through and through paired with sweet happiness felt within the heart—an outwardly graceful but inwardly blissful nature.