萍的祖母去世时留下了(le )十(shí )封尘(chén )封许久的信，她嘱(zhǔ )咐只有在写这些(xiē )信的地方才能打开它们。于是(shì )萍就带上(shàng )了祖母的骨灰踏上了去往缅甸之旅。她在缅甸遇到了凯凯，只(zhī )有他知晓(xiǎo )祖母的存在。随后他们发现原来这(zhè )些信都(dōu )是一个(gè )深(shēn )爱着