When he was young, he once read this sentence in a book: Life is limited, what you love will eventually be forgotten, and what you forget will eventually turn into ashes.
He has no clear memory of what happened many years ago.
He never even remembered her face.
Because he and she didn't know each other at all.
Every time he recalled it, these memories seemed to be separated by a layer of veil and not very clear. His hatred was deep in his heart, but he didn't know that someone might also hate him. He might even simply remember that maybe, maybe, such a thing happened.
They passed each other and she said: Help me.
But he didn't look back.
His life changed forever.
Concept: When you are indifferent to the world, the world will also be indifferent to you.