What stories do you guys wish that it will never end?

Honestly none. I wish for all good stories to end someday with a proper ending. There's no point in a continuous story (even if we assume it doesn't get repetitive and is always creative with new arcs). I don't have that kind of attachment to stories, I prefer structure. Start, middle, end. Also, I don't want to die never knowing the ending, afterall. D.Gray-man, I hope you end one day. I'm starting to be scared I might never see the ending atp