Alas, there too many balls juggling in the air for a pilot logline.? A story line for a pilot can setup several plot threads and introduce major characters, but the logline for it must focus only on answering the basic questions:

Who is the protagonist?
What is her primary objective goal?
Who is her primary antagonist?

>> that aging process has stopped,
For whom?? The protagonist?? The world, or…? And so what?? I mean, my first read is that most people would welcome the phenom:? it’s a boon not a dramatic problem.? And the inciting incident should be an obvious problem — not an apparent boon.

>>Nymph(Rose)
As a general rule fictional character names should be omitted from a logline.? As a general rule, a defining characteristic and/or character flaw of the character should be included.

>>>?using the ?psychological weapon?
??? I have no idea what this means.? Other than it seems to be important to the story.

>>>and clone children safe and alive
This could be the story hook, but as I said there are so many balls being juggled simultaneously, I don’t know which one to keep my eye on, which one is really the most important item for the pilot.

>>>while she is working together with a demon
WTF?? An ally???

>>>? making love means unleashing the weapon.
??? What does this mean?? What is the weapon?

Your challenge is that you are pitching a story for a complicated world that only exists in your imagination.? It’s impossible to project that imaginary world into the mind of someone else via a logline.

Have you thought of novelizing the story first?

fwiw