I hope there won't be this weird plot twist that when she arrives on Earth it'll actually be 10000 years later, but due to space-time dilation, she won't be affected and thus end up on some ruined Earth.

NegativeSoul said:

I hope there won't be this weird plot twist that when she arrives on Earth it'll actually be 10000 years later, but due to space-time dilation, she won't be affected and thus end up on some ruined Earth.

Nah. I'm expecting just bad science in that these binocs can show their target in real time and they have FTL travel for protag-chan to reach earth fast enough to engage in normal high/middle-school rom com shenanigans.

And then she wakes up at home after his confession.