Technically it is only a one episode 'series' (I think). Essentially about a relationship between a boy, and a girl who is selected to be part of a space mission. The story revolves around an interesting concept - as the girl gets further away in space, the messages she sends take longer to return to the home planet, so the boy grows up hearing these messages from this girl over longer and longer periods of time. Eventually years pass between messages because the girl has to travel very far away. Plot points might be a little blurry because it's been a while since I've watched it. It is also likely not very popular because none of my friends actually knew the series. Ideally I'd like the name as well as the director. Any help would be greatly appreciated!! :)