Whom I do not know yet

The letters began to arrive without warning.
No sender. No stamp. No explanation.
At first, Sivelle didn't think much of them.
She assumed it was a mistake, a prank, or perhaps some absurd coincidence.
But the letters kept coming.
And always-without fail-they appeared exactly when she needed them most.
As if someone unseen knew what was happening in her life before she could even put it into words.

Driven by curiosity-and by something deeper she can't quite name-Sivelle decides to respond.
Thus begins an unexpected correspondence with someone who seems to know her with unsettling intimacy.

Between ink, memories, and confessions, the letters begin to transform her inner world.
But who is really writing from the other side?
And why do those words manage to touch precisely what Sivelle has not yet dared to say out loud?