>>111878142The only tie to the actual show, that we know of so far. is that Eda's design is based on Ryoko.
Anything further has yet to be revealed, but it'll probably just be background jokes.
You'll be completely lost in the threads, but the show should be fine.
But you should watch some Tenchi, it's a classic and the grandfather of the Harem genre, with none of the mistakes that it's successors fall into.
