In this world, many people, whether you like them or not, will eventually leave you.
When you turn around, the people in the past have gone, leaving only the scenery. Then, don't turn around; ahead, there will be new people who will give you laughter and pain.
You have been in this world, you have laughed before, what else is there to miss? My heart is broken and I am left in despair.
It's better to go back when the lead is washed away.