In every episode, Maryoku tells the audience, "My wish is that all of your wishes get granted". Doesn't this mean she's creating a wish that won't be able to leave Nozomu until every other wish until the end of time has left? In other words, a wish that's almost certainly going to be in limbo forever?
Unless Nozomu somehow ends up in an apocalypse that ends it completely, which would probably launch the wish out of Nozomu if explosions are involved in some way. Either that or the wish just gets killed in the process.