Radio Waves Across Time and Space

The creativity is good, but I feel that the details of the plot and the description of the characters are average. Take the sister as an example, why does his sister feel that she is qualified to interfere with the protagonist's emotions? The protagonist has always loved her sister, but the sister does not know. The relationship between the protagonist and the sister is connected by the sister, but now the sister is gone (no one knows that the sister is still alive). Then why can the sister interfere? And the sister thinks so because the protagonist is good to him, so he wants the protagonist to always be by his side. , Let the protagonist treat him well for the sake of a person who no longer exists (at least now everyone thinks that the heroine is dead), shouldn't a normal person hope that the other party can come out of it as soon as possible when facing this kind of thing? Forget this sad experience? Although he is sad to lose his sister, this is not the reason why his sister keeps the hero here.

The idea is very good, but it seems to be hard science fiction at the moment. I hope I can stick to it and don't collapse.

Very good, write slowly, when will the earth discover her?