萍的祖母去世时留下了十封尘封许久的信，她嘱咐只有在(zài )写这些(xiē )信的地方才能打开(kāi )它(tā )们。于是萍就带上(shàng )了祖母的骨灰踏上了去往缅甸(diàn )之(zhī )旅。她在缅甸遇到(dào )了凯凯，只有(yǒu )他(tā )知晓祖母的存在。随(suí )后他们发现原(yuán )来这些(xiē )信都(dōu )是一个深爱着