旧城旧事旧伤疤夏史夏沫夏不分
[jiù chéng jiù shì jiù shāng bā xià shĭ xià mò xià bù fēn]
'Old city, old events, old scars' may suggest reminiscing past experiences or wounds in one's life, all tangled together without clear separation, happening across a series named or resembling 'Summer'. It connotes an intricate connection of nostalgia mixed with unresolved griefs from the past