Old Friends from Mountains and Rivers Come into the Mirror

For half a year, the huge rewards from the mysterious fan "Old Friend of Mountains and Rivers" have always followed her. It wasn't until she met Chen Ye in an orange rescue suit at the snow-capped mountain pass that she revealed the secret behind this ID: it was a promise made by a war photographer to his father, an unsent love letter from an old photo studio, and 30 years of waiting and perseverance.