心如深海天然冷心如暮光天然暖
[xīn rú shēn hăi tiān rán lĕng xīn rú mù guāng tiān rán nuăn]
Translated as 'A Heart as Cold as the Deep Sea, Naturally Warm Like Twilight.' This reflects a dual-sided personality—cold on the outside but warm inside, akin to the changing warmth of twilight