Love can also last day after day, year after year.
When I look at you, you don't have to look back. Go forward boldly, do what you like, go where you want to go, but you must be happy.
We grew up together and should grow old together. If not, I will wait for you to grow old.
If you are unhappy, you will see me when you look back.
Concept: Loneliness and depression of secret love