I am a courier, but I am not delivering ordinary packages - I am delivering "regrets".
Send the memory of your confession to yourself ten years ago, and the will to fight to yourself before the college entrance examination... Every order changes a person's destiny.
Until I received an undeliverable black box:
The recipient address is "1 second before birth", the recipient is "my unborn self", and there are only four words of regret in it - regret of being born.
The box cannot be destroyed, it will come back on its own, and every time it comes back, the regret inside becomes deeper.
What's even weirder is that the quantum signature shows: I sent this package myself.
Me from the future.
And the me in the future has already found a way to end my existence.
