蓝庭挽歌
[lán tíng wăn gē]
It is an elegant and somewhat melancholic phrase. '蓝' means blue which symbolizes peace or sadness sometimes, and '庭' indicates a courtyard or residence; '挽歌' is the Chinese term for elegy, a mournful song or poem. Hence this username evokes a sentiment of remembrance or mourning in beautiful places or memories.