凉杞

This can be interpreted as two parts. '凉'(liáng) can mean cool or aloof, whereas '杞' usually relates to goji berries which are seen as healthy food items in China. However, there's a phrase '杞人忧天(qǐ rén yōu tiān)' in Chinese meaning 'to worry unnecessarily over something.' Hence, this name could possibly describe oneself in a lighthearted, indifferent way while hinting at unwarranted concerns or unnecessary worries.