信使

那些在你生命中短暫停留，隨後又消失的人（比如前任、短暫的朋友）。他們不是來陪你走到最後的，而是像遊戲裡的派件員（NPC），專門為了給你上一課或者送一個機會而來。信送到了，他們自然就退場了。

Those who linger briefly in your life before vanishing—former lovers, fleeting friends—are not destined to walk with you to the end. They are the NPCs of your existence, dispatched solely to deliver a lesson or an opportunity. Once the message is received, they naturally exit the stage.