This is another time and space deep in your memory. Once we were young, frivolous and unruly. Once we were desperate and fell into deep sorrow. In the past, it was our simplest happiness. "Luan Yin" is the song we sang that summer that we were reluctant to give up.
Maybe after watching "Luan Yin", you feel that the world is deeply malicious to you, and you even feel that the life you once expected is dark. Then you might as well regard it as a preview, or a spiritual tragedy that is far away from your world, because the people who love you will be behind you, holding up the sky where you cry.