花落倾城夏未凉花开半夏凉城空
[huā luò qīng chéng xià wèi liáng huā kāi bàn xià liáng chéng kōng]
A poetic expression where the falling flowers make the city beautiful while summer has not yet turned chilly (first part); and when the flower blooms at half past the summer, the previously bustling city now lies empty and silent (second part). It's quite an evocative name suggesting cycles of life, beauty blooming even during quiet moments and a certain transient charm.