夕阳余温未尽心已碎
[xī yáng yú wēn wèi jĭn xīn yĭ suì]
Literally translated, it's about 'the warmth of the sunset has not disappeared yet the heart is broken'. The name conveys melancholy - there might still be lingering feelings but hope is lost, similar to twilight, bittersweet moments remain after heartbreak.