心底深处的一丝幽怨
[xīn dĭ shēn chŭ de yī sī yōu yuàn]
This online name expresses a faint resentment deep down in the heart. It conveys a feeling of having an unresolved, subtle grievance or sorrow that has been harboring in one's innermost self for quite some time, perhaps because of past experiences or emotional entanglements.